Compare Bitdefender vs Avast
Bitdefender vs Avast at a Glance
This is a paid-vs-free matchup, and it is less lopsided than many readers expect. Both products scored 18/18 at AV-TEST February 2026. At the AV-Comparatives 2025 Summary Report, Bitdefender took Gold for Advanced Threat Protection; the Avast/AVG shared engine took Gold for Overall Performance — the lightest system impact of any top-tier suite. Detection quality is comparable. The honest conversation is about bundle features and Avast's corporate history.
Avast context (2024 FTC settlement). Avast's Jumpshot subsidiary sold anonymized browsing data from 2014-2020. The FTC fined Avast $16.5 million in February 2024, banned the practice, and required deletion of the collected data. Avast was acquired by Gen Digital in 2022 (same parent as Norton, AVG, Avira, LifeLock). The current privacy policy prohibits the old practices, and there have been no documented fresh incidents since 2024. We still install Avast Free; readers who prefer to avoid Gen Digital altogether should pick Bitdefender or Microsoft Defender.
Headline verdict: Bitdefender Total Security wins on feature bundle, detection depth on targeted attacks, and legal-history cleanliness. Avast Free wins on exactly one axis that matters: it is free. Avast Premium Security paid tier is harder to justify against Bitdefender's $19.99 price.
Quick Verdict Table
| Bitdefender Total Security | Avast Free Antivirus | |
|---|---|---|
| First-year price | $19.99 / 5 devices | $0 / 1 device |
| Renewal price | $89.99 | $0 |
| AV-TEST Feb 2026 | 18 / 18 | 18 / 18 |
| AV-Comparatives 2025 top award | Gold Advanced Threat Protection | Gold Overall Performance |
| System impact (full scan CPU) | 20-35% | 15-25% |
| Key differentiator | Full bundle, ransomware rollback | Free, lightest in its class |
| Corporate history | Independent (Romania) | Gen Digital (post-2024 FTC settlement) |
The real question is not Bitdefender vs Avast Free but Bitdefender vs Avast Premium Security, which is $49.99/year and harder to recommend against Bitdefender at $19.99. For free-tier comparison, Avast Free is competitive. For paid-tier comparison, Bitdefender is clearly better value.
Lab Test Showdown
AV-TEST February 2026: both scored 18 / 18. Protection 6/6, Performance 6/6, Usability 6/6. Top Product designation for both. Avast Free scoring 18/18 in 2026 is a genuine achievement — most free-tier products score 17/18 or lower on Usability.
AV-Comparatives 2025 Summary Report:
- Overall Performance: the Avast/AVG shared engine took Gold (lowest system impact of any top-tier consumer product). Bitdefender Silver. This is Avast's single strongest lab-measurable quality.
- Advanced Threat Protection: Bitdefender Gold; Avast Advanced+ no medal. On targeted multi-stage attacks, Bitdefender's behavioral engine has the clear edge.
- Real-World Protection: Avast Silver, Bitdefender Silver. Tied.
- Malware Protection: both Advanced+ certified. Avast's file-scan detection is 99.8%, Bitdefender's is 99.9%.
- False Positives: Bitdefender had 1 FP across 1,000+ clean samples; Avast had 6 (still top-tier but higher).
What this means: Avast's engine is genuinely competitive on detection — not a lesser product. Its standout quality is low system impact (Gold for Performance). Bitdefender's standout is targeted-attack defense (Gold for Advanced Threat Protection). For commodity malware encountered during normal browsing, either will catch it.
Pricing + Renewal Reality
The pricing conversation depends on which Avast tier you are comparing to.
- Avast Free Antivirus: $0. Ad-supported (upgrade prompts to Avast Premium inside the app). 1 device.
- Avast Premium Security: $49.99 first year / $94.99 renewal / 10 devices. Adds firewall extras, ransomware shield, email shield, sandbox, webcam shield.
- Avast One: $99.99 first year / $139.99 renewal / 5 devices. Adds VPN, identity monitoring, cleanup tools.
- Bitdefender Total Security: $19.99 first year / $89.99 renewal / 5 devices. Includes everything Avast One includes plus ransomware rollback and Safepay.
The honest paid-tier verdict: Avast Premium Security at $49.99 is overpriced against Bitdefender Total Security at $19.99. The Avast brand premium is not justified by the feature set or the detection metrics. If you are going to pay, pay Bitdefender.
The honest free-tier verdict: if you refuse to pay, Avast Free is a legitimate pick — better heuristics than Defender on some novel threats, Gold for Performance, 18/18 at AV-TEST. The FTC-settlement history is real but the post-2024 privacy policy explicitly prohibits the old practices. Microsoft Defender is also free and does not share the history; if the Gen Digital connection concerns you, Defender is the cleaner free pick.
Feature-by-Feature Comparison
Pricing | ||
| Price | $29.99 | $69.99 |
| Old pricing | ||
| Money back Guarantee | ||
Scanning | ||
| Real-time Antivirus | ||
| Manual Virus Scanning | ||
| USB Virus Scan | ||
| Registry Startup Scan | ||
| Auto Virus Scanning | ||
| Scheduled scan | ||
Threat type | ||
| Anti-Spyware | ||
| Anti-Worm | ||
| Anti-Trojan | ||
| Anti-Rootkit | ||
| Anti-Phishing | ||
| Anti-Spam | ||
| Email Protection | ||
| Chat/IM Protection | ||
| Adware Prevention | ||
Compatibility | ||
| Windows | ||
| Mac | ||
| Android | ||
| IOS | ||
Usage | ||
| Easy of use | ||
Extra features | ||
| Personal Firewall | ||
| Parental Controls | ||
| Gamer Mode | ||
| VPN Service | ||
| Smartphone Optimizer | ||
| Device Tune-up | ||
| Safe browser | ||
Support | ||
| Live Help | ||
| Phone support | ||
| Email support | ||
| Ticket support | ||
| Feature | Bitdefender Total Security | Avast Free |
|---|---|---|
| Antivirus engine | Bitdefender (in-house) | Avast/AVG shared engine |
| Real-time protection | Yes | Yes |
| Ransomware remediation | Yes, with rollback | No (paid tier only) |
| Firewall | Yes | No (paid tier only) |
| VPN | 200 MB/day | No (separate product) |
| Password manager | Included | No (separate product) |
| Webcam protection | Yes | No (paid tier only) |
| Safe banking mode | Safepay | No (paid tier only) |
| Anti-phishing | Yes | Yes |
| Wi-Fi inspector | No | Yes |
| PUP detection | Yes | Yes |
| In-app ads / upsells | Minimal | Present (free-tier only) |
| Devices covered | 5 | 1 |
Avast Free's feature set is deliberately limited to push users toward paid tiers. The upgrade prompts are the cost of running it free. Bitdefender's $19.99 tier delivers the full suite at the price of dinner.
Real-World Performance
Both tested on the same mid-range Windows 11 laptop (Intel i5-12450H, 16 GB DDR5, NVMe SSD).
| Metric | Bitdefender | Avast Free |
|---|---|---|
| Idle RAM | 140 MB | 120-150 MB |
| Full scan CPU peak | 20-35% | 15-25% |
| Full scan time (280 GB) | 18 minutes | 15 minutes |
| Boot delta vs clean | +2 seconds | +2 seconds |
| Background processes | 3 | 3 |
| VPN throughput (500 Mbps line) | 220-310 Mbps (capped) | n/a (separate product) |
Avast's AV-Comparatives 2025 Gold for Performance holds up in hands-on testing — measurably lighter than Bitdefender on CPU during scans. Bitdefender is not heavy, but Avast is the lightest in the top-tier field. Both are fine on modern hardware.
Who Should Pick Bitdefender
- Anyone willing to pay $19.99 for a year. Bitdefender Total Security is the best-value premium suite on the market. Avast Premium Security at $49.99 does not beat it on any axis.
- Users who want ransomware rollback. Bitdefender can reverse-encrypt files hit by ransomware if the engine catches it during execution. Avast Free has no equivalent.
- Users who care about the 2024 FTC-settlement history. Bitdefender has no equivalent corporate history. If the Jumpshot / Gen Digital connection concerns you, Bitdefender is the clean pick.
- Households of 2-5 devices. Avast Free covers 1 device; paying for Avast to reach 5 devices costs more than Bitdefender for the same coverage.
- Users who want a full suite: VPN, password manager, Safepay, webcam protection. All bundled in Bitdefender Total Security. Avast sells each as a separate product.
- Users who hate in-app upsells. Avast Free's upgrade prompts are constant. Bitdefender's are minimal.
Full Bitdefender Total Security review.
Who Should Pick Avast
- Users who refuse to pay for antivirus and want something stronger than Microsoft Defender's heuristics. Avast Free's detection is competitive at 18/18 AV-TEST and Gold for Performance.
- Users with older hardware. Gold for Performance at AV-Comparatives 2025 is not marketing — Avast genuinely is the lightest real-time antivirus at the top of the market. If your laptop is from 2016-2018 and you cannot afford new hardware, Avast Free is a legitimate pick.
- Users who already use Avast and have no specific complaint. Switching is friction; if the FTC settlement does not bother you and the upgrade prompts are tolerable, Avast Free works.
- Users who want Wi-Fi security scanning bundled. Avast's Wi-Fi Inspector flags weakly-configured home networks. Useful occasionally, no direct Bitdefender free-tier equivalent.
Full Avast review. If the Gen Digital connection concerns you, Microsoft Defender is a cleaner free pick — also 18/18 at AV-TEST Feb 2026, no ad-supported business model, no corporate settlement history.
Frequently Asked Questions
Is Avast safe to use after the FTC settlement?
The 2024 FTC settlement banned Avast from selling browsing data and required deletion of historical data collected by Jumpshot (2014-2020). The current Avast privacy policy explicitly prohibits the old practices, and there are no documented fresh incidents since 2024. Avast is owned by Gen Digital (same parent as Norton, AVG, Avira). For detection purposes, Avast is safe. For users who prioritize corporate-history cleanliness, Microsoft Defender or Bitdefender are the alternatives.
Is Bitdefender better than Avast?
On feature bundle and paid-tier value, yes. Bitdefender Total Security at $19.99 delivers more features than Avast Premium Security at $49.99. On free-tier detection, Avast is competitive — 18/18 at AV-TEST Feb 2026 and Gold for Performance at AV-Comparatives 2025. If you will pay, pay Bitdefender. If you will not pay, Avast Free is a legitimate choice alongside Microsoft Defender.
Is Avast Free really free?
Yes, no subscription fee. The business model is (a) upgrade prompts inside the app pushing Avast Premium and Avast One, and (b) historically, until 2020, Jumpshot data monetization. Post-2024 FTC settlement, the data-monetization model is banned. The upgrade prompts are the remaining cost — tolerable but present.
Should I use Avast Free or Microsoft Defender?
Microsoft Defender if you want the cleanest option — Microsoft first-party, no ad-supported model, no corporate-history baggage, 18/18 at AV-TEST Feb 2026. Avast Free if you want a slightly different detection engine with AV-Comparatives 2025 Gold for Performance and you do not mind the upgrade prompts or Gen Digital ownership. Both are legitimately free; pick by which corporate story you prefer.
Does Bitdefender slow down my PC more than Avast?
Slightly. Avast Free scan CPU peaks at 15-25% vs Bitdefender's 20-35%; idle RAM is 120-150 MB vs Bitdefender's 140 MB. The gap is small but measurable and matches AV-Comparatives' Gold for Performance award to Avast. On modern hardware neither will be noticeable; on older hardware Avast has the edge on resource use.
Can I run Avast and Bitdefender together?
No. Two real-time antivirus engines will fight each other, crash services, and leave you less protected than either alone. Pick one. Malwarebytes Premium is the only antivirus designed to run alongside another real-time product; Avast and Bitdefender are not.
Final Verdict: the One-Line Answer
Pick Bitdefender Total Security at $19.99 if you will pay for antivirus. It beats Avast Premium Security on features and price. Pick Avast Free if you refuse to pay and want a detection engine with AV-Comparatives Gold for Performance; understand the 2024 FTC-settlement context and Gen Digital ownership. Pick Microsoft Defender if you refuse to pay and prefer no corporate-history baggage — also 18/18 at AV-TEST and built in to Windows.
Read the full Bitdefender review | Read the full Avast review | Our full 2026 ranking
