Comparison

JAM BUDDY II vs StringKeeper

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

Head to head
About

JAM BUDDY II

Features
Read full description

JAM BUDDY is a versatile 3-in-1 desktop smart amp, it adopts stereo design.40W, delivering fabulous tone and dynamic for both music playing and jamming.

About

StringKeeper

Features
Read full description

Never wonder when you last changed your strings again. StringKeeper helps guitarists track string installations across every guitar in their collection, so your instrument always sounds its best. Track Every Guitar: Add all your guitars with photos, names, and notes. See at a glance which ones are due for a string change and which were recently restrung. Log String Changes: Record the string brand, gauge, and date every time you restring. StringKeeper tracks your history so you can see what worked and what didn't. Get Reminded: Set a reminder after a string change and StringKeeper will notify you when it's time to restring โ€” no more playing on dead strings. Log Play Sessions & Maintenance: Track how often you play each guitar and log maintenance records to keep a full history of each instrument. If you notice a guitar has dead strings you can set a "Needs string change" flag which will cause an alert icon to appear next to the guitar. Pick a Guitar to Play: Not sure which guitar to pick up tonight? Use the slot machine to let StringKeeper choose for you.

Screenshots

JAM BUDDY II4 screens
StringKeeper1 screens

Verdict

The call

The clearest difference is update cadence: StringKeeper at every 2 days against JAM BUDDY II's every 12 months. JAM BUDDY II's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JAM BUDDY II ships an update every 12 months, StringKeeper every 2 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

Scorecard2 real differences ยท 4 level
JAM BUDDY II versus StringKeeper: the parameters behind the verdict, then further details
ParameterJAM BUDDY IIStringKeeper
PriceFreeFree
Update frequencyEvery 12 monthsEvery 2 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 โ€” better17.0
Further details โ€” not scored
Size28 MB3 MB
Age rating4+4+
DeveloperChangsha Melofty Audio Technology Co., Ltd.John Carleton

In-app purchases

None

JAM BUDDY II

No in-app purchases

None

StringKeeper

No in-app purchases

Questions

Is JAM BUDDY II free?
JAM BUDDY II is free to download, with no in-app purchases.
Is StringKeeper free?
StringKeeper is free to download, with no in-app purchases.
Do JAM BUDDY II or StringKeeper have ads?
Neither JAM BUDDY II nor StringKeeper shows ads.
Which is updated more often, JAM BUDDY II or StringKeeper?
JAM BUDDY II ships an update every 12 months, and StringKeeper every 2 days. Most recently, JAM BUDDY II was updated on October 7, 2026 and StringKeeper on October 6, 2026.

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