# Nombri (Tally Counter) vs Diffraction Grating Calculator

The clearest difference is update cadence: Nombri (Tally Counter) at every 11 months against Diffraction Grating Calculator's every 29 months. Nombri (Tally Counter) also leads on price ($1.99 vs $2.99). Diffraction Grating Calculator's advantage is iOS requirement (13 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Nombri (Tally Counter) costs $1.99 and Diffraction Grating Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nombri (Tally Counter) ships an update every 11 months, Diffraction Grating Calculator every 29 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Nombri (Tally Counter) | Diffraction Grating Calculator |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[3.9 (9 ratings)](https://appshunter.io/ios/app/nombri-tally-counter/id1176558694/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 29 months |
| Monetization | Paid | — |
| Size | 18 MB | 1 MB |
| Requires iOS | 16.0 | **13** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Clauss](https://appshunter.io/developer/286091996) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Nombri (Tally Counter)

[App page](https://appshunter.io/ios/app/nombri-tally-counter/id1176558694)

This utility app allows you to manually count anything with customizable tally, event, and timer counters. Track progress with graphical analysis, control counters from notifications or Apple Watch, and export your data.

**Highlights:** Manual tally counting, Event counters (days until/since), Timers, Customizable counter settings, App badge display, Graphical data analysis, Apple Watch integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Diffraction Grating Calculator

[App page](https://appshunter.io/ios/app/diffraction-grating-calculator/id1413088894)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nombri (Tally Counter) free?

Nombri (Tally Counter) costs $1.99, with no in-app purchases.

### Is Diffraction Grating Calculator free?

Diffraction Grating Calculator costs $2.99, with no in-app purchases.

### Do Nombri (Tally Counter) or Diffraction Grating Calculator have ads?

Neither Nombri (Tally Counter) nor Diffraction Grating Calculator shows ads.

### Which is updated more often, Nombri (Tally Counter) or Diffraction Grating Calculator?

Nombri (Tally Counter) ships an update every 11 months, and Diffraction Grating Calculator every 29 months. Most recently, Nombri (Tally Counter) was updated on October 29, 2026 and Diffraction Grating Calculator on October 29, 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.*