Comparison

PaSSBot vs TEMPO

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

Head to head
About

PaSSBot

This app is a stochastic filter bank audio processor for iPad, offering advanced sound manipulation with various filter types and powerful stochastic generators. It allows for precise control over filter parameters and harmonic distribution, ideal for creating complex audio textures.

Highlights
  • Stochastic filter bank audio processor
  • Multiple filter types (Biquad, Ladder, SEM, Resonators)
  • Up to 64 filters in stereo
  • Powerful stochastic generators
  • Individual filter parameter control
  • Harmonic distribution options
  • Precision DSP rendering (<1ms control rate)
Read full description

PaSSBot is a unique stochastic filter bank audio processor. The desktop VST/AU version of PaSSbot has already arrived in February 2020 and this iOS version is equivalent to the latest version 2.1. PaSSBot filter types are Biquad, StateVariableFilter, Ladder, SEM and Resonators. With behaviors of bandpass, Lo + Hipass, Notch and up to 64 of them in true stereo ! The user can set values of center frequency, gain and resonance of the each filter, which will be then eloborated with powerful stochastic generators ( 4 independent GENs for each filter ) with continuous or discrete probabilistic distributions but also with standard waveforms. One can set each filter parameters individually, but also distribute them in harmonic order, again the harmonic spread ratio can be set by the user or even can be modulated by a GEN. Precision DSP rendering, less than 1milisec. control rate precision. The filters can run continuously or be triggered manually. In that case, each filter will be applied an independent AR envelope with configurable random duration. Important notes : - A recent iPAD model is being recommended and also setting the host buffer size to 128 or higher greatly helps to the CPU needs which also heavily depends on the number of parallel filters being used. - The resonators can be sensitive to input signal level. - The PaSSBot manual can be found at this link. https://www.sonic-lab.com/PaSSBot_files/PassBot_manual.pdf sonicLAB PaSSBot youtube playlist : https://www.youtube.com/playlist?list=PLP0cOkraQHDYUoMG6BETTN1eGm-Kq5z0T

About

TEMPO

Create beats quickly with a 12-voice drum machine featuring deep sequencing, live capture, and resampling. Shape sounds with modeled drums, samples, or your own WAVs, then mix and add effects to finish your tracks anywhere.

Highlights
  • 12-voice drum workstation
  • Playable pads and step sequencing
  • Up to 64 steps per pattern
  • Modeled drums and user WAV import
  • Live capture and resampling
  • Mixer, FX, and automation
  • AUv3 extension
Features
Read full description

TEMPO-1 is a sampler groovebox for fast beat making, deep sequencing, live capture, resampling, MIDI workflows, and finishing ideas anywhere. Build beats with a 12-voice workstation: Kick, Snare, Closed Hat, Open Hat, Clap, Tom, Cymbal, Perc, Keys, Bass, Synth, and Sounds. Tap ideas on playable pads, shape each voice, arrange patterns, route effects, and keep the rhythm moving from the first touch. The sequencer is built for feel. Create patterns up to 64 steps, then shape each step with velocity, probability, microtiming, ratchets, conditional playback, and pitch. Push hits ahead or behind the grid, add rolls, thin out busy parts, and turn programmed rhythms into grooves with movement. Sampling stays immediate. Record live audio, import WAVs, edit samples in place, and assign them to any voice. Browse modeled drums and bundled sounds, build custom kits, then bounce sounds or recordings back into pads for resampling. Capture pad or MIDI performances directly into patterns, with quantized recording when you want tight timing. Mix with level, pan, mute, solo, master controls, and meters. Add motion with Phaser, Slicer, Delay, Reverb, Filter, routing, and automation. TEMPO-1 gives you practical ways to finish ideas. Export loops as WAV, export patterns as MIDI, or capture a live performance as WAV. Use it on its own, map controls with MIDI learn, send MIDI from pads and sequenced tracks, or run it as an AUv3 in supported hosts. Key features: - 12-voice sampler groovebox - Playable pads and step sequencing - Up to 64 steps per pattern and 64 pattern slots - Velocity, probability, microtiming, ratchets, conditional steps, and chromatic pitch per step - Live quantized recording from pads or MIDI - Record, import, edit, and resample WAVs - Modeled drums, bundled sounds, and custom sample kits - Mixer, FX, routing, and automation - External MIDI output for pads and sequenced tracks - MIDI learn for performance controls - AUv3 extension for host-based workflows - Loop WAV export, MIDI export, and live WAV capture - User presets plus bank import and export - Designed for iPhone, iPad, and Mac TEMPO-1 is for beatmakers who want hardware-style speed, deep sequencing, portable sampling, MIDI flexibility, and practical export tools in one focused instrument.

Screenshots

TEMPO4 screens

Verdict

The call

The clearest difference is price: TEMPO at $9.99 against PaSSBot's $34.99. TEMPO also leads on update cadence (every 4 days vs every 4 months) and device support (3 vs 1). PaSSBot's advantage is rating (5.0 vs 4.3) and iOS requirement (11.0 vs 17.0). On review sentiment, ratings volume, ads and in-app purchases 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

PaSSBot costs $34.99 and TEMPO $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PaSSBot holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

PaSSBot ships an update every 4 months, TEMPO every 4 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
PaSSBot versus TEMPO: the parameters behind the verdict, then further details
ParameterPaSSBotTEMPO
Price$34.99$9.99 — better
Rating5.0 (8 ratings) — better4.3 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better3
Update frequencyEvery 4 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, Mac — better
Requires iOS11.0 — better17.0
Further details — not scored
Size11 MB99 MB
Age rating4+4+
DeveloperSonicPlanet Audio Video Teknolojileri Anonim Sti.Richard Gillespie

Customer experience

PaSSBot

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TEMPO

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PaSSBot

No in-app purchases

None

TEMPO

No in-app purchases

Questions

Is PaSSBot free?
PaSSBot costs $34.99, with no in-app purchases.
Is TEMPO free?
TEMPO costs $9.99, with no in-app purchases.
Which has better reviews, PaSSBot or TEMPO?
PaSSBot is rated higher. PaSSBot averages 5.0 out of 5 from 8 ratings, while TEMPO averages 4.3 from 3 ratings.
Do PaSSBot or TEMPO have ads?
Neither PaSSBot nor TEMPO shows ads.
Which is updated more often, PaSSBot or TEMPO?
PaSSBot ships an update every 4 months, and TEMPO every 4 days. Most recently, PaSSBot was updated on October 23, 2026 and TEMPO on October 24, 2026.

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