Comparison

Endless A vs Strum Machine

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

Head to head
About

Endless A

Easily generate a consistent A-440 pitch for tuning instruments. Select from various instrument sounds to play the reference tone endlessly until you tap to stop. Ideal for musicians needing a reliable tuning reference.

Highlights
  • Endless A-440 pitch generation
  • Multiple instrument sound options
  • Simple tap-to-play interface
  • Reference tone for tuning
  • Piano, violin, french horn, sine wave sounds
Features
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A concert A, whenever you need one. Endless A-440 plays a sustained 440 Hz reference tone for tuning instruments. Choose piano, violin, French horn, or a pure sine wave. Tap an instrument to start, switch sounds with a tap, and tap again or use Stop playback to finish. • Four bundled reference sounds • A clear playing indicator and dedicated stop button • Light and dark appearances for iPhone and iPad • An optional original 2015 design • Works offline, with no account, ads, or microphone access This is a reference-tone player. It does not listen to your instrument or measure its pitch.

About

Strum Machine

Generate realistic backing tracks for practice with real instrument audio. Customize chord progressions, keys, and tempo. Features a large song library, song editor, and band customization options. Works offline and syncs across devices.

Highlights
  • Realistic instrument audio backing tracks
  • Customizable chord progressions, keys, and tempo
  • Extensive song library
  • Simple song editor
  • Band and instrument customization
  • Cross-platform syncing and offline mode
Features
Currently charting
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Elevate your music practice with customizable backing tracks generated with audio from real instruments (guitar, mandolin, and standup bass). Strum Machine can play any chord progression, in any key, at any speed. It's the only backing-track app built specifically for players of bluegrass, old-time, fiddle tunes, and other such genres. (Although it works pretty good for some jazz/swing now, too!) Why musicians of all levels love Strum Machine: • Realistic Sound: Backing tracks are assembled in real time from studio-quality instrument recordings. • Quick Adjustments: Instantly adjust the speed/tempo, change the key, loop part of a song, etc. • Auto-Speedup: Gradually increase the BPM at the end of every repetition for training purposes. • Chord Reference: Clean, beautiful chord charts, which can be displayed in letters or numbers (i.e. "1-4-5"). • Extensive Library: Over 1,300 songs (mostly from bluegrass and old-time) ready to go, with thousands more posted on the community forum. • Simple Song Editor: Add your own songs (or edit existing ones) in minutes. Almost every chord you can play on a guitar is available for use. • Customize the Band: Choose from a variety of built-in band styles, then optionally customize each instrument individually – adjust the strumming pattern, add automatic bass runs, and more. • Organize & Share: Create song lists for practicing or even performing, and share them with your friends or on the community forum. • Cross-Platform: Sync your custom songs, lists, and preferences with any device you use Strum Machine on: phone, tablet, or computer. (It works offline, too!) • Responsive Support: If you run into any problems or have questions, write us an email or post a message on the forum and someone will get back to you within a few days! Strum Machine is under active development and we're always working on ways to make the app even more useful to our users... while keeping it uncluttered and intuitive first and foremost. Discover how Strum Machine can improve your music practice today! Download Strum Machine and play a handful of demo songs instantly, without signing up. For the full experience, including access to all built-in songs and the ability to create your own, start a free trial. Terms of Use: https://strummachine.com/terms Privacy Policy: https://strummachine.com/privacy

Screenshots

Endless A1 screens
Strum Machine4 screens

Verdict

The call

The clearest difference is rating: Strum Machine at 4.7 against Endless A's 3.7. Strum Machine also leads on ratings volume (120 vs 3) and chart position (#165 vs unranked). Endless A's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 89%). On price, update cadence, 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. Strum Machine sells 1 in-app purchase, starting at $4.99 per month. Endless A asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Strum Machine holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Strum Machine has 120 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Endless A's written reviews are positive against 89% of Strum Machine's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Endless A ships an update every 8 days, Strum Machine fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard7 real differences · 4 level
Endless A versus Strum Machine: the parameters behind the verdict, then further details
ParameterEndless AStrum Machine
PriceFreeFree
Rating3.7 (3 ratings)4.7 (120 ratings) — better
Positive reviews100.0% of reviews — better88.7% of reviews
Number of ratings3120 — better
Update frequencyEvery 8 days — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#165 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.4 — better
Further details — not scored
Size6 MB77 MB
Age rating4+4+
DeveloperNathan FennelLuke Abbott LLC

Customer experience

Endless A

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Strum Machine

All ratings118 ratings
Positive93.2%
Neutral0.8%
Negative5.9%
Written reviews62 reviews
Positive88.7%
Neutral3.2%
Negative8.1%

In-app purchases

None

Endless A

No in-app purchases

1 purchases

Strum Machine

Subscriptions1
  • Monthly Subscription14 Days trial$4.991 Month

Questions

Is Endless A free?
Endless A is free to download, with no in-app purchases.
Is Strum Machine free?
Strum Machine is free to download, with in-app purchases available.
Which has better reviews, Endless A or Strum Machine?
Strum Machine is rated higher. Endless A averages 3.7 out of 5 from 3 ratings, while Strum Machine averages 4.7 from 120 ratings.
Do Endless A or Strum Machine have ads?
Neither Endless A nor Strum Machine shows ads.
Which is updated more often, Endless A or Strum Machine?
Endless A ships an update every 8 days, and Strum Machine fortnightly. Most recently, Endless A was updated on October 24, 2026 and Strum Machine on October 27, 2026.

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