# Planisphere vs BLR Limits

The clearest difference is price: BLR Limits at Free against Planisphere's $1.99. BLR Limits also leads on rating (5.0 vs 3.0) and update cadence (every 2 days vs every 2 months). Planisphere's advantage is ratings volume (4 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BLR Limits is free to download; Planisphere costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLR Limits holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Planisphere ships an update every 2 months, BLR Limits every 2 days. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Planisphere | BLR Limits |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/planisphere/id331897327/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blr-limits/id6477339119/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 74 MB | 22 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Julian James](https://appshunter.io/developer/293642870) | [Oliver Buterbaugh](https://appshunter.io/developer/1729040302) |

## What reviewers say

### Planisphere

[App page](https://appshunter.io/ios/app/planisphere/id331897327)

Explore the cosmos with an interactive sky map. Discover constellations, stars, and celestial objects with detailed information. Track celestial bodies and view the sky from any location and time.

**Highlights:** Interactive sky map with pinch-to-zoom, Detailed information on celestial objects, Compass and accelerometer integration, Searchable database of stars and objects, Adjustable date, time, and location, Night Light mode for red tint viewing

**Features:** Vision Pro support

**In-app purchases:** none


### BLR Limits

[App page](https://appshunter.io/ios/app/blr-limits/id6477339119)

Instantly calculate Flight Duty Period limits and push-by times by cross-referencing operator and regulatory schemes. Provides clear, side-by-side limit cards for various crew configurations, with color-coded urgency indicators. Features a full audit trail for every calculation and supports acclimatization status.

**Highlights:** Side-by-side operator and regulatory limit cards, Instant push-by time calculation, Color-coded urgency indicators, Full audit trail for calculations, Favorite routes and calculation history, Supports acclimatization and rest inputs, Dark mode interface

**In-app purchases:** none


## Frequently asked questions

### Is Planisphere free?

Planisphere costs $1.99, with no in-app purchases.

### Is BLR Limits free?

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

### Which has better reviews, Planisphere or BLR Limits?

BLR Limits is rated higher. Planisphere averages 3.0 out of 5 from 4 ratings, while BLR Limits averages 5.0 from 1 ratings.

### Do Planisphere or BLR Limits have ads?

Neither Planisphere nor BLR Limits shows ads.

### Which is updated more often, Planisphere or BLR Limits?

Planisphere ships an update every 2 months, and BLR Limits every 2 days. Most recently, Planisphere was updated on September 20, 2026 and BLR Limits on September 16, 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.*