Power Stone vs Aiiro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power Stone
Discover your ideal charmstone by answering a series of ten questions. This intuitive tool guides you to find the stone that best suits you based on your responses.
- Charmstone identification
- Ten-question quiz
- Personalized stone recommendations
- User-friendly interface
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Don't know what your charmsotone is? This charmstone finder will help you. Just answer the ten questions and you will find your best stone.
Aiiro
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Answer a few questions and discover your personality type — and who you click with. Aiiro AI16 is a personality typing and compatibility app built on the 16-type model. The test runs as a conversation with an AI character, so it feels far lighter than filling in a questionnaire. WHAT YOU CAN DO • 16-type personality test: 12 questions to find your type • Type library: read the traits of all 16 types any time • Compatibility check: pair your type with someone else's and see how you match • Love style test: put words to how you behave in relationships • Cognitive functions: a deeper look at the thinking patterns behind your type • Daily fortune: changes every day, per type GREAT IF YOU • Want to know your personality type • Are curious about compatibility with friends, partners or family • Need language for describing yourself • Just enjoy personality-type talk LANGUAGES: English, Japanese, German, French, Italian, Spanish, Arabic, Simplified Chinese, Traditional Chinese, Thai No sign-up, free to use. This app is for entertainment only. It is not a psychological assessment and not a medical service. Enjoy the results as a starting point for self-reflection.
Screenshots
Verdict
The clearest difference is ads: Power Stone at none against Aiiro's shown. Aiiro's advantage is update cadence (every 3 months vs every 67 months). On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Power Stone ships an update every 67 months, Aiiro every 3 months. The most recent releases landed on July 26, 2026 and September 23, 2026 respectively.
| Parameter | Power Stone | Aiiro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 67 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 66 MB |
| Age rating | 4+ | 17+ |
| Developer | ZOOMO, Inc. | Kyosuke Takahashi |
In-app purchases
Power Stone
No in-app purchases
Aiiro
No in-app purchases
