# ACE Checklist Editor vs ChronoCalc Pro

The clearest difference is in-app purchases: ChronoCalc Pro at none against ACE Checklist Editor's 10. ChronoCalc Pro also leads on iOS requirement (16.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ACE Checklist Editor sells 10 in-app purchases, starting at $5.99 per month. ChronoCalc Pro asks for nothing beyond the download.

ACE Checklist Editor ships an update every 4 days, ChronoCalc Pro every 8 days. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ACE Checklist Editor | ChronoCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/ace-checklist-editor/id6748047077/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 4 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Michalina](https://appshunter.io/developer/1823351786) | [ERLEND JOHNSRUD VAAGE](https://appshunter.io/developer/1760100550) |

## What reviewers say

### ACE Checklist Editor

[App page](https://appshunter.io/ios/app/ace-checklist-editor/id6748047077)

Create, manage, and execute aviation checklists digitally. Designed for pilots, it offers offline functionality, professional templates, and multi-format import/export for enhanced safety and efficiency in the cockpit.

**Highlights:** Digital aviation checklist creation, Offline functionality, Multi-format import/export (ACE, ForeFlight, Dynon), Professional templates, Challenge & Response format, Revision history, Smart organization by aircraft or phase of flight

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ACE Pro Monthly | $5.99 | per month |
| ACE Pro Annual | $49.99 | per year |
| Fly Mode (Lifetime) | $4.99 | one-time |
| PDF Export (Lifetime) | $9.99 | one-time |
| Beechcraft Baron B55 (BE55) | $9.99 | one-time |
| Beechcraft Baron B58 (BE58) | $9.99 | one-time |
| Beechcraft Baron B58P (B58T) | $9.99 | one-time |
| Beechcraft Duchess (BE76) | $9.99 | one-time |
| Piper JETPROP (PA46) Checklist | $9.99 | one-time |
| ACE File Access (Lifetime) | $99.99 | one-time |


### ChronoCalc Pro

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACE Checklist Editor free?

ACE Checklist Editor is free to download, with in-app purchases available.

### Is ChronoCalc Pro free?

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

### Do ACE Checklist Editor or ChronoCalc Pro have ads?

Neither ACE Checklist Editor nor ChronoCalc Pro shows ads.

### Which is updated more often, ACE Checklist Editor or ChronoCalc Pro?

ACE Checklist Editor ships an update every 4 days, and ChronoCalc Pro every 8 days. Most recently, ACE Checklist Editor was updated on October 17, 2026 and ChronoCalc Pro on October 19, 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.*