# Rollei Studio vs ND+Timer

The clearest difference is in-app purchases: Rollei Studio at none against ND+Timer's 1. Rollei Studio also leads on iOS requirement (12.0 vs 15.6). ND+Timer's advantage is update cadence (every 2 months vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. ND+Timer sells 1 one-off in-app purchase. Rollei Studio asks for nothing beyond the download.

Rollei Studio ships an update every 13 months, ND+Timer every 2 months. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Rollei Studio | ND+Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 9 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rollei GmbH & Co. KG](https://appshunter.io/developer/658176679) | [Tobias Ullerich](https://appshunter.io/developer/1475365559) |

## What reviewers say

### Rollei Studio

[App page](https://appshunter.io/ios/app/rollei-studio/id1481807730)

**In-app purchases:** none


### ND+Timer

[App page](https://appshunter.io/ios/app/nd-plus-timer/id1534477340)

This app helps photographers determine correct exposure times for long exposure shots using ND filters. It includes a timer to capture the perfect moment and offers pro features through in-app purchases for enhanced functionality.

**Highlights:** Exposure time calculation with ND filters, Integrated timer for capturing moments, Notifications while device is locked, Dark mode (Pro feature), Lock screen widget with running timer (Pro feature), Dynamic Island support (Pro feature), Automatic exposure computation for multiple filters (Pro feature)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ND+Timer Pro | $1.99 | one-time |


## Frequently asked questions

### Is Rollei Studio free?

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

### Is ND+Timer free?

ND+Timer is free to download, with in-app purchases available.

### Do Rollei Studio or ND+Timer have ads?

Neither Rollei Studio nor ND+Timer shows ads.

### Which is updated more often, Rollei Studio or ND+Timer?

Rollei Studio ships an update every 13 months, and ND+Timer every 2 months. Most recently, Rollei Studio was updated on September 25, 2026 and ND+Timer on October 7, 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.*