# Speedometer ∞ GPS Speed vs PDF Flow

Speedometer ∞ GPS Speed and PDF Flow are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Speedometer ∞ GPS Speed sells 3 in-app purchases, starting at $1.99 per month and PDF Flow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Speedometer ∞ GPS Speed ships an update fortnightly, PDF Flow every 10 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Speedometer ∞ GPS Speed | PDF Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.3K ratings)](https://appshunter.io/ios/app/speedometer-gps-speed/id1247222152/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 51.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Fawkes Wei](https://appshunter.io/developer/432767536) | [Chi-Feng Chien](https://appshunter.io/developer/1893082070) |

## What reviewers say

### Speedometer ∞ GPS Speed

[App page](https://appshunter.io/ios/app/speedometer-gps-speed/id1247222152)

This app provides a simple and beautiful speedometer for iPhone and iPad. It allows users to easily track their speed with an extra-large digital display, functioning as a HUD.

**Highlights:** Large digital display, HUD mode, Speed tracking, iPhone and iPad compatible, Extra large font

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Lifetime | $9.99 | one-time |
| Pro Lifetime | $14.99 | one-time |

**What reviewers like**

- 👍 Simple and effective
- 👍 Sleek interface
- 👍 Accurate speed readings
- 👍 Useful for various activities

**What reviewers complain about**

- 🐛 Inconsistent speed tracking
- 🐛 Unreliable performance
- 🐛 Inaccurate speed readings
- 🐛 Lack of stabilization

**Reported bugs**

- Doesn't track speed at all
- Displays incorrect speed readings
- Doesn't work in certain conditions

**Requested features**

- Add tutorial or instructions
- Improve speed tracking accuracy
- Provide speed history or top speed tracking


### PDF Flow

[App page](https://appshunter.io/ios/app/pdf-flow/id6762281783)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Flow | $2.99 | one-time |


## Frequently asked questions

### Is Speedometer ∞ GPS Speed free?

Speedometer ∞ GPS Speed is free to download, with in-app purchases available.

### Is PDF Flow free?

PDF Flow is free to download, with in-app purchases available.

### Do Speedometer ∞ GPS Speed or PDF Flow have ads?

Neither Speedometer ∞ GPS Speed nor PDF Flow shows ads.

### Which is updated more often, Speedometer ∞ GPS Speed or PDF Flow?

Speedometer ∞ GPS Speed ships an update fortnightly, and PDF Flow every 10 days. Most recently, Speedometer ∞ GPS Speed was updated on November 6, 2026 and PDF Flow on October 31, 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.*