Turntabulator vs Audio Function Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Turntabulator
Precisely measure your turntable's speed to ensure your vinyl sounds as the artist intended. This app uses advanced analysis to detect RPM accuracy, offering quick or exact measurement modes for audiophiles. Get detailed feedback on speed error and direction.
- Precise RPM measurement
- Quick and Exact measurement modes
- Displays percentage speed error
- Indicates if turntable is fast or slow
- Auto-sense 33⅓ or 45 RPM
- No gyroscope required
Read full descriptionHide full description
If you’re a vinyl junkie, you want your music to sound exactly as the artist intended - and that means 33⅓ RPM, not 35. Previously, checking your turntable for accuracy was difficult and inexact. But no longer. Measuring your turntable’s speed is now as simple as setting your phone down. Just start Turntabulator, place it on your platter, and start spinning. In as little as a few seconds, Turntabulator will adapt its output to your turntable, revealing its analysis in a stabilized rotating display that has to be seen to be believed. No twisting your neck - just read and be delighted. Through the power of Musical Analysis with Gyroscopically Indifferent Calculations (MAGIC), no gyroscope is required, so Turntabulator works just fine on older devices. In fact, the results are more accurate than the gyroscope would provide. Turntabulator offers two measurement modes. Quick Mode will give you results within 0.1 RPM very quickly, typically in 15 seconds or less. Or, if you’re a perfectionist, use Exact Mode for more precise results, typically reaching 0.01 RPM error or less within one or two minutes. Turntabulator will auto-sense 33⅓ or 45 RPM, or can be fixed at either setting. It then displays the percentage error compared to the target RPM, and whether your turntable is running slow or fast. That’s it! Start using Turntabulator, and make sure your vinyl sounds as perfect as possible.
Audio Function Generator
Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.
- Generate sine, square, triangle, and sawtooth tones
- Frequency and volume sweep generation
- Noise generation (white, pink, violet, etc.)
- Custom preset creation and saving
- Extended frequency range (PRO feature)
- Multi-tone playback (PRO feature)
Read full descriptionHide full description
This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity. Get to know this great App now! It is very well maintained and has received considerable upgrades over the past years. So, … what can you do with this App? • PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth. • PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). • PLAY VOLUME SWEEPS (from minimum to maximum volume). • Try the SWEEP REPEAT / WOBBLE function. • Try the MUSIC TONES PLAYBACK. • Experiment with the huge FINE TUNE SELECTON, PRESETS SELECTION! • Or create your own CUSTOM PRESETS! • And SAVE an endless amount of CONFIGURATIONS (Frequency, Sweep, Noise) for later quick access and direct playback function. • Even play back different kinds of NOISE – White, Pink, Violet, Grey, Brown, Blue is also supported. The Function Generator is AMAZINGLY INTUITIVE and SIMPLE to use! AND THESE ARE THE ADVANCED SETTINGS/FEATURES (upgrade to PRO required): => Extending The Frequency Range (1Hz - 21kHz) => Extending The Sweep Times (0.1s - 600s) => Changing Min/Max Slider Frequency Ranges => Changing Max Sweep Time Slider Range => Changing Signal Amplitude => Enabling Of The Sweep Repeat / Wobble Function => Frequency Slider Setting to Linear or Logarithmic => Left/Right Channel Individual Selection => Permanently Saving Custom Presets => Saving Of Endless Number Of Audio Configurations => Phase Out Setting (custom phase shift of the generated signal) => BPM (Beats per Minute) Feature => Dual Function Generator => MultiTone Generator (playback of up to eight individual tones) => Background Theme Selection (Light/Dark) Check out the tutorial page: www.ee-toolkit.com/audio-function-generator
Screenshots
Verdict
The clearest difference is price: Audio Function Generator at Free against Turntabulator's $1.99. Audio Function Generator also leads on rating (4.7 vs 4.2) and update cadence (every 6 weeks vs every 58 months). Turntabulator's advantage is in-app purchases (none vs 1) and chart position (#182 vs unranked). On review sentiment, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Audio Function Generator is free to download; Turntabulator costs $1.99 up front. Audio Function Generator sells 1 one-off in-app purchase. Turntabulator asks for nothing beyond the download.
Audio Function Generator holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 57, so its average is the more settled of the two. Written reviews point the same way: 75% of Turntabulator's written reviews are positive against 77% of Audio Function Generator's.
Turntabulator ships an update every 58 months, Audio Function Generator every 6 weeks. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.
| Parameter | Turntabulator | Audio Function Generator |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.2 (57 ratings) | 4.7 (2.2K ratings) — better |
| Positive reviews | 74.6% of reviews | 77.1% of reviews — better |
| Number of ratings | 57 | 2.2K — better |
| Update frequency | Every 58 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #182 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 10 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Dougherty | Thomas Gruber |
Customer experience
Turntabulator
Audio Function Generator
User reviews
Turntabulator
From 57 App Store ratingsWhat we love
- 👍 Easy to use
- ✅ Accurate readings
- 💰 Good value for price
- 💡 Ingenious functionality
- ✨ Neat interface
Room to improve
- ⚠️ Not for iPad users
- ❌ Intermittent functionality
- 📉 Accuracy concerns
- 🚫 No refund policy
- 💻 Outdated (32-bit)
Audio Function Generator
From 2.2K App Store ratingsWhat we love
- 👍 Great app
- 🎶 Helps with Tinnitus
- 💯 Best app I've paid for
- 🔍 Highly recommended
- 🎨 Attention to detail
Room to improve
- 🐛 Crashes
- 💰 Deceptive/Money hungry
- 🔒 Basic features paywalled
- 🔒 Limited without paying
- 🔒 Removed functionality to push paid version
Bugs and requests
Turntabulator
Reported bugs
9 issues- App doesn't detect speed
- Consistently says 'Interrupted'
- Phone spins on platter
- Not accurate compared to tachometer
- Gains to produce results sometimes
Show 4 moreShow fewer
- 32-bit app will stop working with iOS 11
- No response from developer for updates
- Warning not to use with iPad after purchase
- Keeps getting 'interrupted'
Requested features
7 requests- Support for 78 RPM
- Support for 8 RPM
- Support for 16⅔ RPM
- Real-time readouts for adjustments
- Live value display
Show 2 moreShow fewer
- Custom RPM input field
- Dark mode option
Audio Function Generator
Reported bugs
4 issues- Crashes on launch
- Volume slider issues
- Airplay not working
- Sound distortion when display is active
Requested features
6 requests- Add download/save feature for custom sounds
- Improve sweep function (continuous mode, better frequency control)
- Add more multi-frequency rows
- Implement 432Hz base frequency option
- Add phase control for noise generators
Show 1 moreShow fewer
- Improve accessibility (VoiceOver support)
In-app purchases
Turntabulator
No in-app purchases
Audio Function Generator
- Upgrade to PRO$9.99
Questions
Is Turntabulator free?
Is Audio Function Generator free?
Which has better reviews, Turntabulator or Audio Function Generator?
Do Turntabulator or Audio Function Generator have ads?
Which is updated more often, Turntabulator or Audio Function Generator?
Other comparisons















