Comparison

TerribleSync vs BitDecay

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

Head to head
About

TerribleSync

Control the tempo of music hardware like synthesizers and drum machines using your iPhone or iPad. Features include tap tempo, precise dial adjustment, and buttons for performance effects. Requires a 3.5mm audio cable for connection.

Highlights
  • Tap tempo
  • Rotary tempo dial
  • Pause/mute button
  • Performance effect buttons
  • Clear interface
  • Open source project
Features
Read full description

Use your iPhone or iPad to control the tempo of impulse-sync-enabled synthesizers, drum machines, and other music hardware. Features: • Tap tempo • Supports 20.0 - 999.0+ BPM • Rotary tempo dial for precise, tactile tempo adjustment • Pause/mute button • ?, !, and :fire: buttons to introduce character and chaos into your performance • Clear, simple interface designed to be easy to use in a stage/performance setting This app works with any instrument you own that takes voltage impulses as a tempo control, such as: • KORG SQ-1, Volca, Monotribe, etc. • Teenage Engineering Pocket Operator • Moog MOTHER-32 (choose the "single clock advance" setting on the instrument) This project is open source. Try building it yourself at https://github.com/terribleben/terrible-sync or contact twitter.com/terribleben with feedback! Notes: • 3.5mm audio cable is required to connect your iPhone or iPad to your sync-enabled instruments. • If the instrument isn't responding, you may need to increase the iPhone's volume. • This software is not produced by, endorsed by, or affiliated with KORG, Teenage Engineering, Moog Music, or other instrument manufacturers.

About

BitDecay

This creative audio effect simulates the character of aging hardware, unstable digital systems, and worn media. It introduces dynamic instability and evolving imperfections to transform pristine audio into lo-fi textures, degraded samplers, or entirely new sound design landscapes.

Highlights
  • Creative digital degradation processor
  • Bit crushing and sample rate reduction
  • Dynamic instability and clock imperfections
  • Musical tone shaping
  • Progressive signal erosion controls
  • AUv3 support
  • Single-page interface
Read full description

Some digital processors sound broken. Bit Decay sounds like they're breaking. Bit Decay is a creative degradation effect that recreates the character of aging hardware, unstable clocks, failing digital systems, worn media, and collapsing fidelity. Instead of simply reducing bit depth and sample rate, Bit Decay introduces movement, instability, and evolving imperfections that bring static digital destruction to life. Shape classic lo-fi textures, degraded samplers, damaged tape transfers, corrupted audio artifacts, and entirely new sound design landscapes. From subtle vintage coloration to complete digital collapse, Bit Decay gives you precise control over how pristine audio slowly falls apart. Whether you're producing electronic music, processing drums, designing cinematic textures, mangling synths, or adding character to vocals, Bit Decay delivers degradation with personality. Features • Creative digital degradation processor • Bit crushing and sample rate reduction • Dynamic instability and clock-style imperfections • Musical tone shaping • Progressive signal erosion controls • AUv3 support for iPad and Mac hosts • Fast workflow with a simple single-page interface

Screenshots

TerribleSync1 screens
BitDecay1 screens

Verdict

The call

The clearest difference is price: TerribleSync at Free against BitDecay's $2.99. TerribleSync also leads on ratings volume (4 vs 1). BitDecay's advantage is rating (5.0 vs 4.0) and review sentiment (100% vs 83%). On ads, in-app purchases, device support and iOS requirement 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

TerribleSync is free to download; BitDecay costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BitDecay holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 83% of TerribleSync's written reviews are positive against 100% of BitDecay's.

Scorecard5 real differences · 5 level
TerribleSync versus BitDecay: the parameters behind the verdict, then further details
ParameterTerribleSyncBitDecay
PriceFree — better$2.99
Rating4.0 (4 ratings)5.0 (1 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings4 — better1
Update frequencyEvery 35 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.012.0
Further details — not scored
Size1 MB17 MB
Age rating4+4+
DeveloperBenjamin RothJeremy Phillips

Customer experience

TerribleSync

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

BitDecay

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TerribleSync

No in-app purchases

None

BitDecay

No in-app purchases

Questions

Is TerribleSync free?
TerribleSync is free to download, with no in-app purchases.
Is BitDecay free?
BitDecay costs $2.99, with no in-app purchases.
Which has better reviews, TerribleSync or BitDecay?
BitDecay is rated higher. TerribleSync averages 4.0 out of 5 from 4 ratings, while BitDecay averages 5.0 from 1 ratings.
Do TerribleSync or BitDecay have ads?
Neither TerribleSync nor BitDecay shows ads.

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