Comparison

Avicenna Research vs reLapse

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Avicenna Research

Contribute to scientific discovery by participating in research studies directly from your smartphone. Share your anonymized data, answer surveys, and provide location or exercise habits if you choose. You maintain full control over your data and can withdraw at any time.

Highlights
  • Participate in health and psychology research
  • Share anonymized data with scientists
  • Answer short survey questions
  • Optionally provide location and exercise data
  • Full control over your data
  • Ability to drop out or delete data anytime
  • Integrates with the Health app
Features
Read full description

Avicenna turns your smartphone into a mobile research lab and enables you to help scientists towards realizing their life-changing discoveries, in health, psychology, kinesiology, and others. Using Avicenna, you can participate in research studies you care about. The study's consent form clearly explains which research organization is requesting your data, how your data is anonymized, who will study your data and for what purpose, and what incentives you can expect for your participation. During your participation, you occasionally will be asked short survey questions. Depending on the study, you also might be asked to provide your location information or exercise habits. None of these are mandatory and you can drop out at any time. Avicenna always reminds you of the data you are providing. Avicenna gives you full control over your data. You always can review the data you have provided through your account on the Avicenna website. You also can drop out of the study at any time you prefer, or delete part or all of the data you have provided, no strings attached. Continued use of GPS running in the background can dramatically decrease battery life. ** This app integrates with the Health app **

About

reLapse

Features
Read full description

reLapse is a privacy-first tracker for the habits you're trying to moderate, not quit: a daily craving, a late-night snack, checking social media past midnight. Life happens. Instead of a counter that drops to zero the moment you slip, reLapse quietly measures the time and frequency between entries, so you can see your real patterns without guilt. HOLD TO LOG, IN UNDER 2 SECONDS Add a home screen or lock screen widget and log an entry with a single half-second hold: no app to open, no typing required. A brief Undo window catches accidental taps. MILESTONES, WITHOUT PRESSURE See how long it has been since your last entry, from one week up to years, and share a milestone as an image if you like. With Pro, see your personal best: the longest stretch you have gone between entries. SEE WHAT CUTTING DOWN IS WORTH With Pro, tell reLapse what one costs you in money, calories or minutes, and how many you usually have. It adds up the difference from your usual, with an optional evening summary. SEE YOUR PATTERNS, NOT YOUR FAILURES Every habit gets a simple calendar of when things happened. With Pro, an on-device pattern engine surfaces the trends that matter, like which nights are your highest-risk or your average interval between entries, and can send a quiet heads-up shortly before a time you often log. IN 13 LANGUAGES English, Deutsch, Español, Français, Português, 日本語, Türkçe, Русский, Bahasa Indonesia, 한국어, Tiếng Việt, हिन्दी and 简体中文. PRIVATE BY DESIGN Your habits, entries and notes never leave your device unless you back them up yourself, and there is no account. No server ever reads your logs. The app reports only anonymous statistics about its purchase screen, never anything about your habits, and you can turn that off in Settings. FREE VS PRO reLapse is free for one habit, with a 90-day calendar, milestones and basic frequency stats; the free version shows ads. reLapse Pro removes the habit limit and the ads, and unlocks the combined multi-habit calendar, notes and time corrections for entries, on-device pattern insights and reminders, savings, your personal best, and private encrypted backup to your own iCloud Drive or other cloud storage. Pro is available as a monthly subscription, an annual subscription (with a 14-day free trial), or a one-time lifetime purchase. Subscriptions renew automatically; manage or cancel anytime in your App Store account settings. Full terms: getrelapse.com/terms.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Avicenna Research4 screens
reLapse4 screens

Verdict

The call

The clearest difference is in-app purchases: Avicenna Research at none against reLapse's 3. Avicenna Research also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. reLapse sells 3 in-app purchases, starting at $5.69 per month. Avicenna Research asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Avicenna Research versus reLapse: the parameters behind the verdict, then further details
ParameterAvicenna ResearchreLapse
PriceFreeFree
Rating3.6 (5 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings5 — better—
Update frequencyEvery 10 daysEvery 10 days
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size217 MB38 MB
Age rating4+4+
DeveloperAvicenna Research Inc.Canburak Tuemer

In-app purchases

None

Avicenna Research

No in-app purchases

3 purchases

reLapse

Subscriptions2
  • Pro Monthly$5.691 Month
  • Pro Annual14 Days trial$28.491 Year
One-time1
  • Pro Lifetime$71.00

Questions

Is Avicenna Research free?
Avicenna Research is free to download, with no in-app purchases.
Is reLapse free?
reLapse is free to download, with in-app purchases available.
Do Avicenna Research or reLapse have ads?
reLapse shows ads; Avicenna Research does not.
Which is updated more often, Avicenna Research or reLapse?
Avicenna Research ships an update every 10 days, and reLapse every 10 days. Most recently, Avicenna Research was updated on November 2, 2026 and reLapse on November 6, 2026.

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