# Task Office lite vs Erebus Solar

The clearest difference is review sentiment: Task Office lite at 53% against Erebus Solar's 0%. Task Office lite also leads on rating (4.0 vs 3.7) and ratings volume (16 vs 3). Erebus Solar's advantage is in-app purchases (none vs 2). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Task Office lite sells 2 one-off in-app purchases. Erebus Solar asks for nothing beyond the download.

Task Office lite holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: Task Office lite has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 53% of Task Office lite's written reviews are positive against 0% of Erebus Solar's.

Task Office lite ships an update every 3 weeks, Erebus Solar every 2 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Task Office lite | Erebus Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (16 ratings)](https://appshunter.io/ios/app/task-office-lite-to-do-list/id1031235945/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/erebus-solar/id6790828521/reviews) |
| Number of ratings | **16** | 3 |
| Positive reviews | **53.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 85 MB | 19 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DK CONSULTING, TOV](https://appshunter.io/developer/1021572765) | [Todd Evans](https://appshunter.io/developer/6790828523) |

## What reviewers say

### Task Office lite

[App page](https://appshunter.io/ios/app/task-office-lite-to-do-list/id1031235945)

Organize your daily tasks, projects, and contacts with this comprehensive GTD organizer. Plan your day, track project progress, and manage team collaborations. Syncs with your existing calendars for seamless scheduling.

**Highlights:** Daily task and project planning, Contact and relationship management, GTD methodology organization, Calendar synchronization (iCloud, Google, Exchange), Team management and collaboration, Visualized daily, weekly, monthly calendar views, Progress tracking for projects

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Start Trial period | Free | one-time |
| Task Office Premium version | $19.99 | one-time |


### Erebus Solar

[App page](https://appshunter.io/ios/app/erebus-solar/id6790828521)

This app helps solar professionals measure on-site shade using their phone's sensors. It generates horizon files compatible with leading PV design software, aiding in accurate solar production estimates.

**Highlights:** AR sun path visualization, Automatic sky capture, Sky Editor for obstruction tracing, Annual solar access analysis, PDF shade report export, Horizon file generation for design tools, Project organization by site

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

**In-app purchases:** none


## Frequently asked questions

### Is Task Office lite free?

Task Office lite is free to download, with in-app purchases available.

### Is Erebus Solar free?

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

### Which has better reviews, Task Office lite or Erebus Solar?

Task Office lite is rated higher. Task Office lite averages 4.0 out of 5 from 16 ratings, while Erebus Solar averages 3.7 from 3 ratings.

### Do Task Office lite or Erebus Solar have ads?

Neither Task Office lite nor Erebus Solar shows ads.

### Which is updated more often, Task Office lite or Erebus Solar?

Task Office lite ships an update every 3 weeks, and Erebus Solar every 2 weeks. Most recently, Task Office lite was updated on October 24, 2026 and Erebus Solar on October 14, 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.*