# Radio Pulsars vs phase estimation algorithm

The clearest difference is price: phase estimation algorithm at Free against Radio Pulsars's $0.99. phase estimation algorithm also leads on update cadence (monthly vs every 8 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

phase estimation algorithm is free to download; Radio Pulsars costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Radio Pulsars ships an update every 8 months, phase estimation algorithm monthly. Both last shipped on October 10, 2026.

## The numbers

| Metric | Radio Pulsars | phase estimation algorithm |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/radio-pulsars/id1638448107/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Paid | — |
| Size | 3 MB | 12 MB |
| Requires iOS | **15.2** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [萌 于](https://appshunter.io/developer/1591520621) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Radio Pulsars

[App page](https://appshunter.io/ios/app/radio-pulsars/id1638448107)

Explore the universe of pulsars with this app, which turns your iPhone into a virtual radio telescope. Discover and observe 85 unique pulsars, including glitching ones and famous celestial objects, offering an engaging educational experience for astronomy enthusiasts.

**Highlights:** Virtual radio telescope simulation, Observe 85 unique pulsars, Learn about glitching pulsars, Explore iconic pulsar examples, Educational astronomy content, iPhone and iPod Touch compatible

**In-app purchases:** none


### phase estimation algorithm

[App page](https://appshunter.io/ios/app/phase-estimation-algorithm/id6469448415)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Radio Pulsars free?

Radio Pulsars costs $0.99, with no in-app purchases.

### Is phase estimation algorithm free?

phase estimation algorithm is free to download, with no in-app purchases.

### Do Radio Pulsars or phase estimation algorithm have ads?

Neither Radio Pulsars nor phase estimation algorithm shows ads.

### Which is updated more often, Radio Pulsars or phase estimation algorithm?

Radio Pulsars ships an update every 8 months, and phase estimation algorithm monthly. Most recently, Radio Pulsars was updated on October 10, 2026 and phase estimation algorithm on October 10, 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.*