# Chrony vs NN_working

The clearest difference is in-app purchases: NN_working at none against Chrony's 5. Chrony's advantage is update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chrony sells 5 in-app purchases, starting at $2.99 per 7 days. NN_working asks for nothing beyond the download.

Chrony ships an update daily, NN_working monthly. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Chrony | NN_working |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chrony-flow-into-action/id6636541447/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Monetization | Freemium | — |
| Size | 26 MB | 34 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Mikheev](https://appshunter.io/developer/1763023935) | [NUÑEZ I NAVARRO](https://appshunter.io/developer/1115681369) |

## What reviewers say

### Chrony

[App page](https://appshunter.io/ios/app/chrony-flow-into-action/id6636541447)

This app helps overcome procrastination by using a 5-minute rule to initiate tasks. It features a customizable productivity stopwatch and a minimalistic interface designed to minimize distractions and build focus.

**Highlights:** 5-minute rule initiation, Productivity stopwatch, Customizable focus sessions, Minimalistic interface, Procrastination breaker

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access (1 Week) | $2.99 | per 7 days |
| Premium Access (1 Month) | $4.99 | per month |
| Premium Access (1 Month) | $4.99 | per month |
| Premium Access (1 Month) | $4.99 | per month |
| Premium Access (Lifetime) | $9.99 | one-time |


### NN_working

[App page](https://appshunter.io/ios/app/nn-working/id6781400680)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chrony free?

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

### Is NN_working free?

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

### Do Chrony or NN_working have ads?

Neither Chrony nor NN_working shows ads.

### Which is updated more often, Chrony or NN_working?

Chrony ships an update daily, and NN_working monthly. Most recently, Chrony was updated on October 24, 2026 and NN_working 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.*