Flaggle.io vs Atmo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flaggle.io
Test your knowledge of national and territorial flags. Identify a mystery flag with limited guesses, using color comparisons to narrow down possibilities. Study your history to improve recognition skills.
- Identify flags of UN member states and other territories
- Visual color comparisons after each guess
- Searchable country and flag list
- Focused gameplay
- No accounts, ads, or tracking
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Think you know flags? Flaggle challenges you to identify a mystery flag in as few guesses as possible. After each incorrect guess, your flag is compared with the answer, revealing where their colors match. Study your guess history to narrow down the possibilities and identify it. Features: • Flags of all 195 UN member and observer states • Flags of 60 other territories and nations • Visual color comparisons after every guess • Searchable country selection and flag list • Simple, focused gameplay • No accounts, advertisements, or tracking Whether you’re a vexillology veteran or just starting to learn, Flaggle is a great way to test your knowledge and sharpen your recognition skills. Good luck and have fun!
Atmo
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Nothing is blocked. You trade for it. Atmo puts one card in front of the apps you open without thinking. Thirty seconds to read it, one question to answer, and the app opens for five minutes. No wall, no lecture, no guilt. HOW IT WORKS 1 — Choose the apps that eat your evenings. They pause. 2 — Tap one. Atmo shows a card: one fact, one question. 3 — Answer it. The app opens. You keep the minutes, and you keep the fact. EIGHT SUBJECTS, THIRTY SECONDS AT A TIME Arts · Economy · Geography · History · Mythology · Philosophy · Sciences · Space Each card is one idea and one question. Not a course, not a game. Something true you did not know this morning, learned in the thirty seconds you were about to give to a feed. A TRADE, NOT A WALL Blockers say no, and you delete them by Thursday. Atmo asks a question instead. You always get through — you just leave with something. There is no willpower to run out of here, and nothing to feel bad about. Set your own rhythm: how many cards a day, how many minutes a card is worth. Change it whenever you like. Stop whenever you like. WHAT YOU GET BACK · Minutes traded, day by day · Progress subject by subject · A card you miss comes back in a couple of days. Nothing is lost. PRIVATE BY DESIGN Atmo uses Apple Screen Time to pause the apps you pick. It only ever learns their names. It cannot see what you do inside them, and nothing about your usage leaves this phone. FREE AND PREMIUM Free: the trade, your apps, your rhythm. Premium: every subject, no cap on cards a day, your own rate. Five minutes at a time, you scroll the same and know more. Or you scroll less. Most people do both. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.quiet.app/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Flaggle.io at none against Atmo's 3. Flaggle.io also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and ads 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. Atmo sells 3 in-app purchases, starting at $7.99 per month. Flaggle.io asks for nothing beyond the download.
Flaggle.io ships an update every 3 days, Atmo every 5 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Flaggle.io | Atmo |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 72 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Velazquez | NARA CAPITAL |
In-app purchases
Flaggle.io
No in-app purchases
Atmo
- Weekly$7.991 Month
- Premium Yearly3 Days trial$24.991 Year
- Yearly3 Days trial$39.991 Year









