# OT100 vs AgeFlash

The clearest difference is in-app purchases: OT100 at none against AgeFlash's 1. OT100 also leads on ads (none vs shown) and iOS requirement (6.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. AgeFlash sells 1 one-off in-app purchase. OT100 asks for nothing beyond the download.

OT100 ships an update every 5 weeks, AgeFlash every 3 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | OT100 | AgeFlash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ageflash-age-calculator/id6767207668/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 64 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Autophix Tech Co., Ltd](https://appshunter.io/developer/650288249) | [SOMMER Media s.r.o.](https://appshunter.io/developer/1716179984) |

## What reviewers say

### OT100

[App page](https://appshunter.io/ios/app/ot100/id985462400)

**Features:** macOS Compatibility

**In-app purchases:** none


### AgeFlash

[App page](https://appshunter.io/ios/app/ageflash-age-calculator/id6767207668)

This app precisely calculates your age in seconds and tracks important birthdays. It offers free features like a live age ticker, zodiac information, and up to three profiles. An optional one-time purchase unlocks unlimited profiles, custom reminders, and removes ads.

**Highlights:** Live age ticker (seconds, minutes, hours, days), Birthday tracker and countdowns, Western and Chinese zodiac information, Numerology and elemental traits, Generation profiles, Lock Screen and Home Screen widgets, Birthday reminders

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AgeFlash Pro - Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is OT100 free?

OT100 is free to download, with no in-app purchases.

### Is AgeFlash free?

AgeFlash is free to download, with in-app purchases available.

### Do OT100 or AgeFlash have ads?

AgeFlash shows ads; OT100 does not.

### Which is updated more often, OT100 or AgeFlash?

OT100 ships an update every 5 weeks, and AgeFlash every 3 weeks. Most recently, OT100 was updated on October 26, 2026 and AgeFlash on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*