# Observer Pro vs Sit Verba

The clearest difference is price: Sit Verba at Free against Observer Pro's $13.99. Sit Verba also leads on rating (5.0 vs 4.6) and update cadence (every 6 weeks vs every 6 months). Observer Pro's advantage is ratings volume (49 vs 2) and iOS requirement (16.4 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

Sit Verba is free to download; Observer Pro costs $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sit Verba holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Observer Pro has 49 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of Observer Pro's written reviews are positive against 100% of Sit Verba's.

Observer Pro ships an update every 6 months, Sit Verba every 6 weeks. The most recent releases landed on October 8, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Observer Pro | Sit Verba |
| --- | --- | --- |
| Price | $13.99 | **Free** |
| Rating | [4.6 (49 ratings)](https://appshunter.io/ios/app/observer-pro/id462392803/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sit-verba/id6758922774/reviews)** |
| Number of ratings | **49** | 2 |
| Positive reviews | 79.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 241 MB | 12 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Bury](https://appshunter.io/developer/462392806) | [David Johnson](https://appshunter.io/developer/591103398) |

## What reviewers say

### Observer Pro

[App page](https://appshunter.io/ios/app/observer-pro/id462392803)

This app helps advanced astronomers and astrophotographers plan their observing sessions. It predicts object visibility, factoring in local obstructions, and provides weather forecasts. Manage observing lists and favorite sites to maximize your stargazing time.

**Highlights:** 14,000+ deep sky objects with photos, Local horizon profile measurement, Object visibility prediction charts, Featured object recommendations, Favorite observing site management, Astronomical weather forecasts

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎯 Excellent target planning and visibility forecasting
- 🌍 Custom horizon mapping feature is intuitive and unique
- 📊 Comprehensive visualization graphs and charts
- 🔍 Extensive DSO catalog with detailed object information
- 📸 Offline object images included

**What reviewers complain about**

- 🐛 Crashes when selecting catalog groupings (recent)
- 🐛 Keyboard doesn't dismiss after input (iPad issue)
- 🐛 Data loss - observer lists disappearing
- 🐛 Search function missing in recent version
- ⏱️ Lack of developer updates for extended periods

**Reported bugs**

- App crashes when selecting catalog groupings (Galaxy, Planetary Nebulae, etc.)
- iOS keyboard doesn't dismiss on iPad after clicking Done
- Observer lists and custom data disappearing after app closure
- Search feature missing in version 1.4
- Continuous crashes since recent updates

**Requested features**

- iPad native app with landscape mode support
- Search functionality restoration/improvement
- Export observer lists to other apps (Sky Safari, etc.)
- Support for planets, comets, and asteroids
- Observing notes and session logging


### Sit Verba

[App page](https://appshunter.io/ios/app/sit-verba/id6758922774)

This app offers a digital flashcard system for learning Latin. Users can create personal dictionaries or utilize a pre-loaded beginner vocabulary. It supports adding detailed grammatical information and includes achievement tracking.

**Highlights:** Personalized word dictionary, Pre-populated beginner vocabulary, Noun declension and verb conjugation entry, Achievement unlocking and sharing, Word export and import functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Observer Pro free?

Observer Pro costs $13.99, with no in-app purchases.

### Is Sit Verba free?

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

### Which has better reviews, Observer Pro or Sit Verba?

Sit Verba is rated higher. Observer Pro averages 4.6 out of 5 from 49 ratings, while Sit Verba averages 5.0 from 2 ratings.

### Do Observer Pro or Sit Verba have ads?

Neither Observer Pro nor Sit Verba shows ads.

### Which is updated more often, Observer Pro or Sit Verba?

Observer Pro ships an update every 6 months, and Sit Verba every 6 weeks. Most recently, Observer Pro was updated on October 8, 2026 and Sit Verba on September 28, 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.*