# ChronoCalc Pro vs TossKeep

The clearest difference is in-app purchases: ChronoCalc Pro at none against TossKeep's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TossKeep sells 3 in-app purchases, starting at $2.99 per month. ChronoCalc Pro asks for nothing beyond the download.

ChronoCalc Pro ships an update every 8 days, TossKeep weekly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ChronoCalc Pro | TossKeep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tosskeep/id6757609513/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | — | Subscription |
| Size | 4 MB | 17 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ERLEND JOHNSRUD VAAGE](https://appshunter.io/developer/1760100550) | [Corey Kane](https://appshunter.io/developer/1863520367) |

## What reviewers say

### ChronoCalc Pro

[App page](https://appshunter.io/ios/app/chronocalc-pro/id6757017750)

**Features:** macOS Compatibility

**In-app purchases:** none


### TossKeep

[App page](https://appshunter.io/ios/app/tosskeep/id6757609513)

Easily declutter your photo library by organizing and deleting images based on when they were taken. This app helps you keep the memories that matter and discard the rest, making photo cleanup feel intuitive and manageable.

**Highlights:** Time-based photo cleaning, Swipe action interface, Keep important photos, Discard unwanted photos, Intuitive cleanup process

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TossKeep Monthly | $2.99 | per month |
| TossKeep Yearly | $9.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is ChronoCalc Pro free?

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

### Is TossKeep free?

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

### Do ChronoCalc Pro or TossKeep have ads?

Neither ChronoCalc Pro nor TossKeep shows ads.

### Which is updated more often, ChronoCalc Pro or TossKeep?

ChronoCalc Pro ships an update every 8 days, and TossKeep weekly. Most recently, ChronoCalc Pro was updated on October 2, 2026 and TossKeep on September 30, 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.*