Comparison

Chekkit vs SLS Exercises

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

Head to head
About

Chekkit

Communicate with customers via a dedicated number to generate reviews, capture leads, and drive sales. This tool helps businesses convert website visitors into paying customers and encourages satisfied clients to leave positive feedback.

Highlights
  • Dedicated business number
  • Customer texting
  • Website visitor conversion
  • Sales lead tracking
  • Review generation
  • Payment processing
Features
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Chekkit gives your business a dedicated texting number, website chat, lead tracking, review collection, and payments — in one app.

About

SLS Exercises

Features
Read full description

Speech Level Singing Exercises is a voice training tool for singers with various vocal exercises. It has below exercises that are commonly used in Speech Level Singing. - Five Tone Scale - Descending Arpeggio - Descending Octave Repeat - Octave Repeat - Octave More Repeat - Octave Broken - One Half Scale - One Half Scale With Gallop - One Half Scale in Triplets The exercises are grouped by vocal bridges; - Female First Bridge A4 Bb4 B4 C5 C#5 - Female Second Bridge E5 F5 F#5 - Female Full Range - Male First Bridge E4 F4 F#4 - Male Second Bridge A4 Bb4 B4 C5 C#5 - Male Full Range The exercises for the bridges are around the specific bridge areas. In full range sections the exercises cover F3 to F6 for female voices and E2 to F5 for male voices. Exercise ranges can be adjusted within the range of the current bridge. All exercises can be played at any tempo between 40 and 270 (for fast riffs and runs) bpm. Exercises can be bookmarked for quicker reference. The playing note of the scale is shown as text and bridge notes are colored. Colored bridge notes can be turned on and off in the settings.

Screenshots

Chekkit4 screens
SLS Exercises4 screens

Verdict

The call

The clearest difference is price: Chekkit at Free against SLS Exercises's $4.99. Chekkit also leads on update cadence (every 6 weeks vs every 6 months). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

Chekkit is free to download; SLS Exercises costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Chekkit ships an update every 6 weeks, SLS Exercises every 6 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Chekkit versus SLS Exercises: the parameters behind the verdict, then further details
ParameterChekkitSLS Exercises
PriceFree — better$4.99
Rating4.0 (12 ratings) — better—
Positive reviews93.3% of reviews—
Number of ratings12 — better—
Update frequencyEvery 6 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.416 — better
Further details — not scored
Size78 MB3 MB
Age rating4+9+
DeveloperChekkitAltug Basaran

In-app purchases

None

Chekkit

No in-app purchases

None

SLS Exercises

No in-app purchases

Questions

Is Chekkit free?
Chekkit is free to download, with no in-app purchases.
Is SLS Exercises free?
SLS Exercises costs $4.99, with no in-app purchases.
Do Chekkit or SLS Exercises have ads?
Neither Chekkit nor SLS Exercises shows ads.
Which is updated more often, Chekkit or SLS Exercises?
Chekkit ships an update every 6 weeks, and SLS Exercises every 6 months. Most recently, Chekkit was updated on October 24, 2026 and SLS Exercises on October 24, 2026.

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