Comparison

DashJam vs NullPerator

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

Head to head
About

DashJam

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DashJam quietly records your whole rehearsal so you never lose the moment you forgot to hit record for. Start a session and keep playing. DashJam holds the most recent 15 minutes of audio in a rolling buffer. When something good happens — a riff, a take, a happy accident — tap Save Jam and pick exactly the stretch you want right on the live waveform. The moment lands in your Library as a shareable audio file. No more "wait, were we recording?" WHY MUSICIANS LIKE IT • Record continuously, decide later. The last 15 minutes are always there to save — you choose the moment after it happens, not before. • Pick it on the waveform. Save Jam opens a live waveform; drag the handles to grab just the part that mattered, then confirm. • Save from the Lock Screen. A Live Activity and Dynamic Island show the recording state and put a save action a tap away while your phone is in your pocket or on a stand. • It survives a crash. If the app gets killed mid-session, your rolling buffer is still there when you reopen. • A Library you'll actually browse. Saves get evocative auto-generated names ("Crimson Spiral", "Velvet Comet") you can rename, with in-app playback. • Your files, your way. Saved jams export as .m4a and show up in the Files app under DashJam — share them by AirDrop, Messages, or any share sheet. • Designed for iOS. Clean, content-first interface built on the latest iOS design system, tinted recording-red. • English and German, with an in-app language override. PRIVATE BY DESIGN Audio never leaves your device. The rolling buffer lives in the app's cache; saved jams live in the app's documents folder. Nothing is uploaded, ever — you decide if and when a recording leaves your iPhone by sharing or exporting it. There are no accounts, no sign-in, and no tracking. DashJam needs microphone access to record, and keeps recording in the background so a session keeps running while you play. That's it. DASHJAM PRO — OPTIONAL Everything above is free. DashJam Pro unlocks a rolling buffer of up to 60 minutes, automatic jam detection (Beta), trimming saved jams on the waveform — keeping the original or replacing it — Places (arrival and leave reminders at your rehearsal spots), and the audio quality/mono picker. • DashJam Pro — Yearly: 1-year auto-renewing subscription • DashJam Pro — Monthly: 1-month auto-renewing subscription • DashJam Pro — Lifetime: one-time purchase, does not renew Prices are shown in your local currency inside the app, on the DashJam Pro screen, before you buy. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://erigrus.de/dashjam/privacy/

About

NullPerator

Create music with a focused tracker workflow on your iPhone and iPad. Compose patterns, arrange songs, and record samples using touch controls or a game controller. Projects are stored locally via the Files app.

Highlights
  • Tracker composition and playback
  • Touch controls
  • Game controller input
  • MIDI routing
  • Sample recording
  • Local project storage
Features
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NullPerator brings the focused tracker workflow to iPhone and iPad. Compose patterns, arrange songs, record samples, and play them back through a compact interface designed around the NullPerator hardware. Use the on-screen controls or connect a compatible game controller. Route MIDI, keep projects in the Files app, and continue working without an account. Features: • Tracker composition and playback • Touch controls optimized for portrait and landscape layouts • Compatible game controller input • MIDI routing, including supported Bluetooth MIDI devices • Sample recording through the current iOS audio input • Local project and sample storage through the Files app • iPhone and iPad support Your projects and settings stay on your device. NullPerator does not include advertising, analytics, or account tracking.

Screenshots

DashJam4 screens
NullPerator1 screens

Verdict

The call

The clearest difference is in-app purchases: NullPerator at none against DashJam's 3. NullPerator also leads on update cadence (daily vs every 9 days). On price, ads, 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

Both are free to download. DashJam sells 3 in-app purchases, starting at $0.99 per month. NullPerator asks for nothing beyond the download.

UpkeepUpdate frequency

DashJam ships an update every 9 days, NullPerator daily. The most recent releases landed on October 25, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 7 level
DashJam versus NullPerator: the parameters behind the verdict, then further details
ParameterDashJamNullPerator
PriceFreeFree
Rating—3.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 9 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size2 MB3 MB
Age rating9+4+
DeveloperErik Gruschka203 Systems

In-app purchases

3 purchases

DashJam

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Yearly$8.991 Year
One-time1
  • DashJam Pro Lifetime$17.99
None

NullPerator

No in-app purchases

Questions

Is DashJam free?
DashJam is free to download, with in-app purchases available.
Is NullPerator free?
NullPerator is free to download, with no in-app purchases.
Do DashJam or NullPerator have ads?
Neither DashJam nor NullPerator shows ads.
Which is updated more often, DashJam or NullPerator?
DashJam ships an update every 9 days, and NullPerator daily. Most recently, DashJam was updated on October 25, 2026 and NullPerator on November 6, 2026.

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