iJuggle vs Frequency
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iJuggle
This app generates and animates juggling patterns using siteswap notation. Explore various generation options and visualize synchronous, asynchronous, and multiplexing patterns with different juggling styles.
- Siteswap generator
- Siteswap animator
- Async/sync/passing notation
- Multiplexing support
- Ground/excited states
- Composite patterns
- Juggling style animation
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iJuggle is a siteswap generator and animator (Siteswap is a mathematical notation for representing juggling patterns). For more information on siteswap notation, check out siteswap.org. The generator is based off of Jack Boyce's J2 program and allows you to choose between a variety of options for generating siteswaps such as async/sync/passing notation, multiplexing, ground/excited states, and composites. It will also allow you to only list siteswaps that contain or exclude certain throws. The animator is based off of JuggleMaster written by Ken Matsuoka and C++ified by Per Johan Groland. With it you can animate synchronous, asynchronous, and multiplexing patterns. It also allows you to specify juggling styles such as mill's mess, which you can mix with any siteswap.
Frequency
Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.
- Generate sine, square, sawtooth, triangle waves
- Adjustable frequency (1Hz-22000Hz)
- Animated sound wave visualization
- Volume control (0-100%)
- Note selection
- Speaker cleaning function
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Are you producing? Want to sound test your speakers or tune your instruments? Or simply, do you want to generate sounds and listen to the generated sounds in different frequencies? Well, then you need a frequency sound generator to produce sound waves in different frequencies. Introducing Frequency Sound Generator! Frequency: Generator Sound player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz and 22000Hz (Hertz). It produces accurate tone & soundwaves while being simple and easy to use. Additionally, pick from a wide variety of notes by taping the notes icon. No matter if you need to sound test and generate high frequency sounds or low frequency sounds, our frequency tone generator is your #1 best solution. EASY CONTROL Frequency: Sound Generator allows you to easily change the soundwaves from the main menu. Simply tap on the sound wave icon and pick between sine, square, sawtooth or triangle. ANIMATED SOUND WAVE You’ll love the animated sound wave function which visually represents the sound for a given frequency. You can change waveform by clicking on a round button at the left side and get a different sound and animated wave. ADJUST FREQUENCY & VOLUME Adjust the sound generating frequency easily by dragging the yellow dot. Make use of the - & + buttons for added adjusting precision. Additionally, control the volume of the generated sounds from 0-100%. NUMEROUS USES: This sound generating app can be used in multiple use cases: - Test your hearing. A human being is capable of hearing frequencies in the average range of 20Hz-20000Hz. This range is getting smaller by age, so it’s interesting to sound test your hearing capabilities. - Test speakers and headphones for the high end (treble) and low end (bass) tones. - Use this app as an instrument tuner when playing or producing. - Cleaning water from the speaker. Since sound is making small vibrations it can help to shake off unwanted water from your speakers. - Find your tinnitus frequency. NOTE: Since mobile phones are not high-quality audio sources and in-built speakers may vary in quality, sometimes users can hear sounds at very low or high frequencies even beyond the scope of human hearing. That noise is not sound of a given frequency but static or “parasite” noise generated by your mobile device. For the best experience use a pair of good quality headphones.
Screenshots
Verdict
The clearest difference is ads: iJuggle at none against Frequency's shown. iJuggle also leads on monetization model (free vs free with in-app purchases) and review sentiment (88% vs 73%). Frequency's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (340 vs 12). On price, rating, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iJuggle holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Frequency has 340 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 88% of iJuggle's written reviews are positive against 73% of Frequency's.
iJuggle ships an update every 3 months, Frequency fortnightly. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.
| Parameter | iJuggle | Frequency |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (12 ratings) — better | 4.7 (340 ratings) |
| Positive reviews | 88.0% of reviews — better | 72.7% of reviews |
| Number of ratings | 12 | 340 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | nathanpeterson.com | Lucija Jaksic |
Customer experience
iJuggle
Frequency
User reviews
iJuggle
From 12 App Store ratingsWhat we love
- 👍 Great for jugglers
- 💡 Excellent for learning tricks
- 👍 Useful for siteswap
- 💡 Generator is helpful
- 👍 Smooth animations
Room to improve
- 🐛 Appears 32-bit only (iOS 11 issue)
- 🐛 Difficult to understand filters for beginners
- 🐛 Patterns hard to find/identify
- 🐛 Passing patterns don't work
- 🐛 1s are shown oddly
Frequency
From 340 App Store ratingsWhat we love
- 👍 Simple and easy to use interface
- 🎵 Accurate frequency generation
- 💰 Free application
- 🧘 Helpful for meditation and stress relief
- 🔧 Multiple waveform options (sine, square, triangular, sawtooth)
Room to improve
- 📢 Intrusive and inappropriate advertisements
- 🔊 Potential audio damage to speakers/hearing
- 🔒 Privacy concerns and data collection issues
- 📱 UI elements off-screen on compact devices
- 🎚️ Difficult frequency selection with slider
Bugs and requests
iJuggle
Reported bugs
7 issues- 32-bit only, not working on iOS 11
- Passing patterns don't work
- Keyboard doesn't work
- Generator feature crashes with iOS 4 update
- Slow-down button removed
Show 2 moreShow fewer
- 1s are shown oddly
- Stieswap set button has no icon on iPad 4.3
Requested features
25 requests- Music option
- Color options
- More tricks
- Accept passing patterns (p-notation & 4 handed ssw's)
- Slower speed & adjustable time between throws
Show 20 moreShow fewer
- Explanation for jargon/filters
- Use pattern names instead of codes
- See patterns with clubs
- Catch sounds option
- Guide to siteswaps
- Rings and clubs support
- Make shower pattern work
- Indicate why a siteswap is illegal
- Select colors/designs for props
- Save and share favorite siteswaps
- Background changing option
- Save favorite tricks
- Name tricks
- Support for multiple jugglers/passing
- More props (clubs, etc.)
- Fudging system
- Scroll for longer periods
- Include/exclude specific multiplexes
- New functions
- Share and fav option
Frequency
Reported bugs
4 issues- Slider snaps to certain numbers, skipping decimals
- Missing specific frequencies (431Hz, 432Hz, 128Hz)
- Settings/controls off-screen on smaller devices
- App crashes when switching between applications
Requested features
9 requests- Manual text input for precise frequency selection
- Ad-free paid version option
- Timer feature for sessions
- Digital tuning with +/- buttons on main screen
- Background image customization or frequency healing chart
Show 4 moreShow fewer
- Decimal frequency support
- Increased decibel/amplification levels
- Language localization (Turkish requested)
- Continuous background play without app switching interruption
In-app purchases
iJuggle
No in-app purchases
Frequency
No in-app purchases
Questions
Is iJuggle free?
Is Frequency free?
Which has better reviews, iJuggle or Frequency?
Do iJuggle or Frequency have ads?
Which is updated more often, iJuggle or Frequency?
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