# InversionLetter vs onlylive（オンリーライブ）

The clearest difference is in-app purchases: InversionLetter at none against onlylive（オンリーライブ）'s 14. InversionLetter also leads on iOS requirement (10.3 vs 15.0). onlylive（オンリーライブ）'s advantage is ads (none vs shown) and update cadence (fortnightly vs every 17 months). On price and device support there is nothing between them.

Both are free to download. onlylive（オンリーライブ） sells 13 in-app purchases, starting at $2.99 per month. InversionLetter asks for nothing beyond the download.

InversionLetter ships an update every 17 months, onlylive（オンリーライブ） fortnightly. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | InversionLetter | onlylive（オンリーライブ） |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/inversionletter/id970949034/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 15.0% of reviews | **37.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 26 MB | 95 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EIICHI KOMINE](https://appshunter.io/developer/495643581) | [TOMOYUKI MIYAMOTO](https://appshunter.io/developer/947322044) |

## What reviewers say

### InversionLetter

[App page](https://appshunter.io/ios/app/inversionletter/id970949034)

This app allows users to invert and rotate text messages, then send them as images via email. It offers options to change characters, tilt, and invert text, with various font choices.

**Highlights:** Invert characters, Rotate text, Send as image via email, Change characters, Tilt and invert options, Font selection

**Features:** Vision Pro support

**In-app purchases:** none


### onlylive（オンリーライブ）

[App page](https://appshunter.io/ios/app/onlylive/id1554615532)

Connect directly with celebrities for private one-on-one video calls. Request exclusive photos and enjoy conversations where your voice is heard. Book calls on a first-come, first-served basis.

**Highlights:** One-on-one video calls with celebrities, Request exclusive 'Only Photos', First-come, first-served booking, Your voice reaches the talent, Fan can choose to show face

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ベーシックプラン | $2.99 | per month |
| 1230コイン | $9.99 | one-time |
| 1690コイン | $17.99 | one-time |
| 2830コイン | $22.99 | one-time |
| 2950コイン | $22.99 | one-time |
| 2950コイン | $24.99 | one-time |
| 3000コイン | $29.99 | one-time |
| 5000コイン | $49.99 | one-time |
| 6900コイン | $49.99 | one-time |
| 6540コイン | $54.99 | one-time |
| 6900コイン | $59.99 | one-time |
| 7000コイン | $69.99 | one-time |
| 10000コイン | $99.99 | one-time |


## Frequently asked questions

### Is InversionLetter free?

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

### Is onlylive（オンリーライブ） free?

onlylive（オンリーライブ） is free to download, with in-app purchases available.

### Do InversionLetter or onlylive（オンリーライブ） have ads?

InversionLetter shows ads; onlylive（オンリーライブ） does not.

### Which is updated more often, InversionLetter or onlylive（オンリーライブ）?

InversionLetter ships an update every 17 months, and onlylive（オンリーライブ） fortnightly. Most recently, InversionLetter was updated on September 27, 2026 and onlylive（オンリーライブ） on October 6, 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.*