LightenAR vs CalmPrime
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
LightenAR
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γηΉθ²γ εͺθ¦ζζε ζ¨η±€δΉεΎοΌε³ε―ι«ι©ARεθ½οΌθθζ¬ηARδΈηεδΊε γζδ½ζΉζ³γ 1. ε°ζΎιθΏηε ζ¨η±€οΌδ½Ώη¨ζζ©ζζεΎε³ε―ι²ε ₯ARηθζ¬δΈη 2. ε¨ARδΈι»ζθζ¬η©δ»ΆοΌε³ε―θδΉδΊε
CalmPrime
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Have you ever felt anxious, restless, or overwhelmed? Calm yourself β prime numbers will show you the answer. Just one gentle tap, and the primes will guide you through the chaos. With a single touch, CalmPrime leads you into a pure βprime meditation space.β CalmPrime β awaken your Stand and enter the digital world of meditation. prime numbers are solitary numbers that can only be divided by 1 and themselves... they give me strength. β Enrico Pucci Conquer your destiny through the power of primes!
Screenshots
Verdict
The clearest difference is ads: LightenAR at none against CalmPrime's shown. CalmPrime's advantage is update cadence (daily vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LightenAR ships an update fortnightly, CalmPrime daily. The most recent releases landed on May 16, 2026 and September 22, 2026 respectively.
| Parameter | LightenAR | CalmPrime |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Daily β better |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 β better | 16 |
| Further details β not scored | ||
| Size | 95 MB | 31 MB |
| Age rating | 4+ | 9+ |
| Developer | Light Generation Co., Ltd. | HUNG-PIN YU |
In-app purchases
LightenAR
No in-app purchases
CalmPrime
No in-app purchases








