# NeroLens vs Ketobo

The clearest difference is update cadence: NeroLens at every 4 days against Ketobo's fortnightly. Ketobo's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NeroLens sells 3 in-app purchases, starting at $4.99 per 7 days and Ketobo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

NeroLens ships an update every 4 days, Ketobo fortnightly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NeroLens | Ketobo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 163 MB | 69 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asadbek Alisherovich](https://appshunter.io/developer/1856634148) | [Edin Causevic](https://appshunter.io/developer/1873829505) |

## What reviewers say

### NeroLens

[App page](https://appshunter.io/ios/app/nerolens-calorie-tracker/id6756017480)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $19.99 | per year |


### Ketobo

[App page](https://appshunter.io/ios/app/ketobo/id6758589867)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ketobo Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is NeroLens free?

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

### Is Ketobo free?

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

### Do NeroLens or Ketobo have ads?

Neither NeroLens nor Ketobo shows ads.

### Which is updated more often, NeroLens or Ketobo?

NeroLens ships an update every 4 days, and Ketobo fortnightly. Most recently, NeroLens was updated on October 28, 2026 and Ketobo on October 31, 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.*