Serumo vs First Merci
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Serumo
Organize your laboratory test results and visualize trends over time. This app helps you understand your health markers with clear charts and educational context, supporting personal wellness tracking. It's designed for educational use and not for medical diagnosis or treatment.
- Upload lab reports (PDF/images)
- Visualize marker trends over time
- Compare results across visits
- Add health logs and reminders
- Multi-language support
- Secure data handling
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Serumo helps you organize laboratory test results and see how your markers change over time—so your numbers are easier to understand at a glance. Built for personal wellness tracking and education, not for diagnosis or treatment. WHAT YOU CAN DO Upload lab reports as PDFs or images and keep them in one secure place See structured markers, units, and trends across visits Review progress and comparisons to spot patterns you care about Add health logs and reminders to stay consistent with the habits you track alongside your labs Use the app in supported languages (including English, French, and Arabic) with layout support where applicable Sign in with email or supported providers (such as Google or Apple) for a simple account experience WHY SERUMO Blood work can be hard to compare visit to visit. Serumo focuses on clarity: your history, visualized, with educational context designed to support understanding—not replace your clinician. PRIVACY & SECURITY (HIGH LEVEL) We take health-related information seriously. Data is handled over secure connections, and our Privacy Policy explains what we collect, how we use it, and how to contact us. Review it before you upload sensitive documents. IMPORTANT Serumo is for wellness and educational use only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always talk to a qualified healthcare professional about your results and care decisions. ABOUT PROCESSING To turn uploads into structured results, the service may process your files using automated analysis, including third‑party AI services, consistent with our Privacy Policy. You control what you upload. Questions? Contact support at the email listed in the app's Privacy Policy. Terms of Use (EULA): https://getserumo.com/terms Privacy Policy: https://getserumo.com/privacy Thank you for choosing Serumo.
First Merci
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One gratitude a day. That is all we ask. No journal to fill. No twenty-minute meditation. Thirty seconds, one sentence, and your day is done. Except that after three weeks, something has changed: your brain starts looking for the good on its own. HOW IT WORKS 1. Open the app and write what did you good today. One line is enough. 2. You can attach a photo. It loses its location data before it leaves your phone, and it stays with your gratitude, in your history. 3. Save it. Your day is green for good. 4. If you like, share it: with all your friends, or just a few. One a day. The work is not the writing, it is the choosing. WHAT BRINGS YOU BACK TOMORROW YOUR STREAK, AND THE FLAMES THAT COME WITH IT 3 days, then 7, 14, 30, 50, 75, 100, and finally 150. Each tier has its own color, icon and animation. ONE MISSED DAY DOES NOT ERASE EVERYTHING Most apps reset you to zero without mercy. Here you win back your entire lost streak by holding a few days in a row. BADGES TO EARN Bronze, Silver, Gold, Emerald, Diamond, Ruby, Sapphire, Obsidian. The last one takes 300 completed days. Every unlock plays full screen. YOUR YEAR AT A GLANCE A contribution calendar, square by square: each green cell is a day you took thirty seconds for yourself. YOUR MEMORIES COME LOOKING FOR YOU "94 days ago, you wrote..." The feed brings your old entries back, with no repeats until you have seen them all. It is the most moving part of the app, and it only exists if you have written. YOUR FRIENDS, YOUR MOTIVATION Add the people close to you by @username. Each has a profile page: their streak, completed days and shares, photos included. You can react: heart, laugh, sad, smile, clap. You get a notification when someone reacts to yours. And above all: you know when they are waiting for you. MAX, YOUR GRATITUDE COMPANION Max is there from day one. Every morning he shares his own gratitude. Behind it, a true story unfolding over a whole month: the soup that stopped a war in Switzerland, Mozart's starling, the dog of Montargis. Twelve tales, 365 days. THE RANKING Global or monthly. You see exactly where you stand, and how many days separate you from the place above. A REMINDER, NOT A NAG Pick your time slot and your level. The app goes quiet for good if you ask it to. YOUR PERSONAL ANALYSIS (OPTIONAL, PAID) If you want it, First Merci reads back what you have written and tells you what it sees: what comes up often, what changed, what you keep returning to. It is generated by artificial intelligence. Nothing is ever sent unless you have subscribed AND ticked the consent box. Your email, your username and your friends' identities never travel with the text. Premium comes monthly or yearly, at the price shown by the App Store. It renews automatically unless canceled at least 24 hours before the end of the period, and is managed in your App Store account settings. A single-month option exists. Analyses produced while subscribed stay readable after you cancel: you keep what you paid for. Everything else in First Merci is free. YOUR PRIVATE GARDEN STAYS PRIVATE Your entries are private by default. A share goes only to your friends, all of them or the ones you pick, and lives 24 hours, never in public. You can report content, block someone, and delete your account and everything in it from inside the app. No ads. No tracking. SIGNING IN By email, or one tap with Apple or Google. We never receive your password. If you choose "Hide My Email", the relay address is what we keep. In English and in French. Your first gratitude will take thirty seconds. Your hundredth will still take thirty seconds, but you will not quite see things the same way. Start tonight. Terms of Use: https://firstmerci.fr/en/legal/terms Privacy Policy: https://firstmerci.fr/en/legal/privacy
Screenshots
Verdict
The clearest difference is update cadence: First Merci at every 3 days against Serumo's every 3 weeks. On price, ads, in-app purchases and device support 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
Both are free to download. Serumo sells 8 in-app purchases, starting at $7.99 per month and First Merci sells 6 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Serumo ships an update every 3 weeks, First Merci every 3 days. Both last shipped on October 31, 2026.
| Parameter | Serumo | First Merci |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 47 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Amandev Technologies | ANTOINE PHILIPPE DESMARTIN |
In-app purchases
Serumo
- Serumo Premium Monthly$7.991 Month
- Serumo Premium Monthly 2 Seat$9.991 Month
- Serumo Premium Monthly 3 Seat$11.991 Month
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- Serumo Premium Monthly 4 Seat$13.991 Month
- Serumo Premium Yearly$59.991 Year
- Serumo Premium Yearly 2 Seat$79.991 Year
- Serumo Premium Yearly 3 Seat$99.991 Year
- Serumo Premium Monthly 4 Seat$119.991 Year
First Merci
- Premium monthly$0.991 Month
- Premium yearly$8.991 Year
- Analysis of a past month$0.99
- A small thank you$1.99
- A big thank you$3.99
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- A huge thank you$8.99









