Comparison

iJammer vs Synthesizer Sim

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iJammer

This app uses device motion to create music and sound effects. Simply activate the feature, move your device, and hear sounds play. It offers various settings for balance practice, virtual juggling, and creative jamming.

Highlights
  • Motion-activated audio
  • Soundboard with 90+ sounds
  • Balance and coordination modes
  • Creative music jamming
  • Play while standing or sitting
Features
Read full description

Get your fun fix with iJammer. Tap the “activate” button, put device in pocket, and lift leg to start shredding! When device changes position, sounds/music play. Tap the button again to deactivate. Tap the “cloud” buttons for instant soundboard audio. Lots of ways to use: -Work on your balance skills with the guitar/drums settings. -Virtually juggle a soccer ball with the soccer setting. -Play random sounds with the fx setting. -Play songs with your legs. -Create music and jam along using the activate feature and soundboard together. Features: -90+ professionally recorded sounds -Soundboard -Lift leg(position change) audio -Use standing up or sitting down

About

Synthesizer Sim

Transform your device into a versatile synthesizer with extensive sound-shaping capabilities. Explore a wide range of waveforms, envelopes, and effects. Record and share your musical creations as WAV files.

Highlights
  • Multiple oscillators and waveforms
  • Extensive envelope and LFO modulation
  • Built-in distortion, EQ, chorus, delay, reverb
  • Responsive keyboard with MIDI support
  • Poly, mono, and legato voice modes
  • Customizable scales and tunings
  • Performance recording and WAV export
Read full description

Turn your iPhone or iPad into an expressive synthesizer. Shape original sounds, play with touch or an external MIDI controller, and capture performances for later playback or WAV sharing. SYNTHESIZE YOUR SOUND • Three oscillators plus a sub oscillator • Six waveforms, unison, detune, mixer and stereo pan controls • Amp and filter envelopes with low-pass, high-pass, band-pass and notch modes • Distortion, EQ, chorus, delay and reverb • Two LFOs for pitch, amplitude and filter modulation PLAY AND CONTROL • Responsive keyboard with velocity, sustain, pitch bend and transpose • Poly, mono and legato voice modes with glide • USB, Bluetooth and network MIDI input • MIDI note, velocity, pitch bend and common controller support PRESETS AND TUNING • 96 factory presets for pads, leads, basses and more • Save your own User presets • Western, world and makam scales • Adjustable root, A4 reference and per-note cent offsets • Save custom User tunings RECORD AND SHARE • Record synth performances without microphone access • Replay saved performances with their sound and tuning settings • Export and share recordings as WAV files FREE AND PREMIUM The free version includes 10 factory presets, up to three User presets and tunings, one saved performance, and optional rewarded access to additional sounds. It may display ads. Premium removes ads and unlocks all 96 factory presets, unlimited User presets and tunings, and unlimited saved performances. Choose a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Purchases are managed through your App Store account and can be restored in the app. Terms of Use: https://alyakastudio.com/terms/ Privacy Policy: https://alyakastudio.com/privacy-policy/

Screenshots

iJammer4 screens
Synthesizer Sim4 screens

Verdict

The call

The clearest difference is rating: iJammer at 5.0 against Synthesizer Sim's 4.3. iJammer also leads on in-app purchases (none vs 3). Synthesizer Sim's advantage is update cadence (every 2 months vs every 78 months). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Synthesizer Sim sells 3 in-app purchases, starting at $2.99 per month. iJammer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iJammer holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 9 and 16 respectively.

UpkeepUpdate frequency

iJammer ships an update every 78 months, Synthesizer Sim every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 5 level
iJammer versus Synthesizer Sim: the parameters behind the verdict, then further details
ParameteriJammerSynthesizer Sim
PriceFreeFree
Rating5.0 (9 ratings) — better4.3 (16 ratings)
Number of ratings916 — better
Update frequencyEvery 78 monthsEvery 2 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size13 MB54 MB
Age rating4+4+
DeveloperCallaloo Records LLCAlper Kahriman

Customer experience

iJammer

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Synthesizer Sim

All ratings16 ratings
Positive75.0%
Neutral12.5%
Negative12.5%

In-app purchases

None

iJammer

No in-app purchases

3 purchases

Synthesizer Sim

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly7 Days trial$14.991 Year
One-time1
  • Lifetime Premium$29.99

Questions

Is iJammer free?
iJammer is free to download, with no in-app purchases.
Is Synthesizer Sim free?
Synthesizer Sim is free to download, with in-app purchases available.
Which has better reviews, iJammer or Synthesizer Sim?
iJammer is rated higher. iJammer averages 5.0 out of 5 from 9 ratings, while Synthesizer Sim averages 4.3 from 16 ratings.
Do iJammer or Synthesizer Sim have ads?
Both iJammer and Synthesizer Sim show ads.
Which is updated more often, iJammer or Synthesizer Sim?
iJammer ships an update every 78 months, and Synthesizer Sim every 2 months. Most recently, iJammer was updated on November 3, 2026 and Synthesizer Sim on November 4, 2026.

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