# Engine RPM vs Tameron

The clearest difference is price: Tameron at Free against Engine RPM's $8.99. Tameron also leads on update cadence (every 3 months vs every 16 months). Engine RPM's advantage is ratings volume (35 vs 1) and iOS requirement (13.0 vs 16.6). On rating, ads, in-app purchases and monetization model there is nothing between them.

Tameron is free to download; Engine RPM costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.0 for Engine RPM against 4.0 for Tameron. That said, the two scores are not equally well evidenced: Engine RPM has 35 ratings behind it against 1, so its average is the more settled of the two.

Engine RPM ships an update every 16 months, Tameron every 3 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Engine RPM | Tameron |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | [4.0 (35 ratings)](https://appshunter.io/ios/app/engine-rpm/id340401811/reviews) | [4.0 (1 ratings)](https://appshunter.io/ios/app/tameron/id1479164287/reviews) |
| Number of ratings | **35** | 1 |
| Positive reviews | 47.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 3 MB | 72 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Real-Time Specialties](https://appshunter.io/developer/335568332) | [Dealer's Choice, Inc.](https://appshunter.io/developer/449048366) |

## What reviewers say

### Engine RPM

[App page](https://appshunter.io/ios/app/engine-rpm/id340401811)

Analyze engine sound to calculate RPM using advanced signal processing. Ideal for engine setup and diagnostics, it supports various engine types and provides real-time feedback for accurate readings.

**Highlights:** Acoustic RPM measurement, Engine sound analysis, Supports 2-stroke/4-stroke engines, Configurable cylinder count, Real-time autocorrelation graph, Adjustable update periods, Low-pass filtering

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💰 Saves money vs. dedicated tachometer
- 🛠️ Useful for engine tuning/diagnostics
- ✅ Works well with correct settings
- 🏎️ Accurate for steady RPMs
- 💡 Ingenious app concept

**What reviewers complain about**

- 📉 Inaccurate or unreliable readings
- ❓ Difficult to configure/use
- 💸 Waste of money (for many)
- 😵 Confusing interface/settings
- ⚡ Not good for rapidly changing RPMs

**Reported bugs**

- Does not register live RPM readings
- Displays incorrect or random numbers
- App opens then closes immediately
- Blank display or flashes incorrect data intermittently
- Cannot get consistent readings

**Requested features**

- Save configuration settings
- Option to display cycle/cylinder count on home screen
- Improved response time for transient surges
- Simplified or automated setup process
- Auto-scaling graphical display for easier harmonic matching


### Tameron

[App page](https://appshunter.io/ios/app/tameron/id1479164287)

Manage your automotive needs with this app. Schedule service appointments, view special offers, and access your digital glovebox. It's a convenient way to handle all your car maintenance and contact information.

**Highlights:** Schedule appointments, View special offers, Start chat support, View maintenance plan services, Utilize digital glovebox, Update contact information

**In-app purchases:** none


## Frequently asked questions

### Is Engine RPM free?

Engine RPM costs $8.99, with no in-app purchases.

### Is Tameron free?

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

### Which has better reviews, Engine RPM or Tameron?

Engine RPM and Tameron are both rated 4.0 out of 5 on the App Store, from 35 and 1 ratings respectively.

### Do Engine RPM or Tameron have ads?

Neither Engine RPM nor Tameron shows ads.

### Which is updated more often, Engine RPM or Tameron?

Engine RPM ships an update every 16 months, and Tameron every 3 months. Most recently, Engine RPM was updated on October 16, 2026 and Tameron on October 6, 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.*