Convert&Master vs Speaker Toolkit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Convert&Master
Read full descriptionHide full description
Convert&Master — Simple Unit Converter Convert&Master helps you convert units quickly and accurately. Clean design, instant results, no account required. Features • 8 categories: Length, Weight, Temperature, Area, Volume, Speed, Time, Data • Real-time conversion with one-tap unit swap • Works fully offline — no internet needed • Private by design — no data collection Built for iPhone and iPad. iOS 15+.
Speaker Toolkit
Read full descriptionHide full description
A pocket audio lab for testing and exercising your iPhone speaker. Every tool generates sound locally — no microphone, no network, no account. • Speaker Cleaner — preset sweeps that may help dislodge loose water or dust. • Air Blower — shaped wind noise, four power levels. • Frequency Generator — 20 Hz to 20 kHz with live oscilloscope. • Speaker Test — Left, Right, Stereo, Bass, Treble diagnostics. • Noise Lab — White, Pink, Brown noise. Sound waves, not magic. Cannot repair damaged hardware.
Screenshots
Verdict
The clearest difference is ads: Speaker Toolkit at none against Convert&Master's shown. Convert&Master's advantage is update cadence (every 3 days vs every 2 weeks). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Convert&Master ships an update every 3 days, Speaker Toolkit every 2 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.
| Parameter | Convert&Master | Speaker Toolkit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | sanat mete | Dang Van Thanh |
In-app purchases
Convert&Master
No in-app purchases
Speaker Toolkit
No in-app purchases
Questions
Is Convert&Master free?
Is Speaker Toolkit free?
Do Convert&Master or Speaker Toolkit have ads?
Which is updated more often, Convert&Master or Speaker Toolkit?
Other comparisons
