# FieldLogs vs Ultradian

The clearest difference is rating: Ultradian at 3.3 against FieldLogs's 1.6. FieldLogs's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (14 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ultradian holds the better App Store score, 3.3 against 1.6. Both are backed by a comparable volume of ratings — 14 and 4 respectively.

FieldLogs ships an update every 2 months, Ultradian every 5 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | FieldLogs | Ultradian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (14 ratings)](https://appshunter.io/ios/app/fieldlogs/id640497763/reviews) | **[3.3 (4 ratings)](https://appshunter.io/ios/app/ultradian/id1482130799/reviews)** |
| Number of ratings | **14** | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 113 MB | 7 MB |
| Requires iOS | **17.0** | 17.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Trekea Mobile, Inc.](https://appshunter.io/developer/550129759) | [Katherine Gratale](https://appshunter.io/developer/1482130798) |

## What reviewers say

### FieldLogs

[App page](https://appshunter.io/ios/app/fieldlogs/id640497763)

Systematize work with illustrated procedures, checklists, and conditional steps to formalize activities. Seamlessly execute and geo-locate jobs with rich media, and collaborate with coworkers in real-time. Download reports to Excel or use APIs for professional generation.

**Highlights:** Illustrated procedures and checklists, Conditional step logic, Real-time job sharing and collaboration, Geo-location and rich media capture, Excel export and API integration, Web-based template designer

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

**In-app purchases:** none


### Ultradian

[App page](https://appshunter.io/ios/app/ultradian/id1482130799)

Leverage your natural energy cycles for optimal task management and rest. This app analyzes biometric data to predict your ultradian rhythms, helping you schedule demanding activities during peak energy and breaks when needed.

**Highlights:** Analyze biometric data, Predict ultradian rhythms, Schedule peak task times, Schedule rest breaks, Connects to Apple Health

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FieldLogs free?

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

### Is Ultradian free?

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

### Which has better reviews, FieldLogs or Ultradian?

Ultradian is rated higher. FieldLogs averages 1.6 out of 5 from 14 ratings, while Ultradian averages 3.3 from 4 ratings.

### Do FieldLogs or Ultradian have ads?

Neither FieldLogs nor Ultradian shows ads.

### Which is updated more often, FieldLogs or Ultradian?

FieldLogs ships an update every 2 months, and Ultradian every 5 months. Most recently, FieldLogs was updated on October 24, 2026 and Ultradian on October 15, 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.*