# Altar D vs ToneLens

The clearest difference is in-app purchases: Altar D at none against ToneLens's 1. Altar D also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ToneLens sells 1 one-off in-app purchase. Altar D asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Altar D | ToneLens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 110 MB | 10 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VAUKLAB](https://appshunter.io/developer/1450378281) | [Visto Engineering Sa](https://appshunter.io/developer/1137887413) |

## What reviewers say

### Altar D

[App page](https://appshunter.io/ios/app/altar-d/id1604389865)

**In-app purchases:** none


### ToneLens

[App page](https://appshunter.io/ios/app/tonelens/id6761526850)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ToneLens Unlocked | $8.99 | one-time |


## Frequently asked questions

### Is Altar D free?

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

### Is ToneLens free?

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

### Do Altar D or ToneLens have ads?

Neither Altar D nor ToneLens shows ads.

### Which is updated more often, Altar D or ToneLens?

Altar D ships an update weekly, and ToneLens weekly. Most recently, Altar D was updated on October 25, 2026 and ToneLens on October 12, 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.*