Comparison

Call Checker vs Check Book Register

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

Head to head
About

Call Checker

Easily track the local times of your international contacts to avoid calling at inconvenient hours. Quickly see who is available and initiate calls directly from the app.

Highlights
  • Track contact local times
  • Avoid bad calling hours
  • Check contact availability
  • Initiate calls directly (iPhone)
Features
Read full description

In a global world it becomes more and more difficult to keep track of the local times of all your important contacts. If you want to avoid to call them at a bad time this application is for you. A quick check tells you whether it's the right time to call or not and who is available at the moment. If you enter the phone number a simple tap on the name is enough to initiate the call (iPhone only).

About

Check Book Register

Easily track expenses and develop an aggregate balance for personal or business finances. Save, reuse, and share financial progress reports via email or print.

Highlights
  • Record expenses
  • Develop aggregate balance
  • Save and reuse registers
  • Track financial progress
  • Share register statements via email
  • Locally save and print registers
Features
Currently charting
Read full description

If you are just getting started managing your finances or have a new business and need a quick solution for tracking expenses, Check Book Register is the best app for you. You can record expenses, and develop an aggregate balance. The app lets you save and re-use the Check Book register, so you can see and keep a track of the financial progress of your business over time. If you would like to share the register statements with your business partners, simply tap e-mail, to send the information instantly anytime and anywhere. Alternatively, you can locally save, email and print the Check Book Register. Managing your check book has never been so easier.

Screenshots

Call Checker4 screens
Check Book Register4 screens

Verdict

The call

The clearest difference is in-app purchases: Call Checker at none against Check Book Register's 10. Check Book Register's advantage is update cadence (every 9 days vs every 23 months) and chart position (#166 vs unranked). 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

Call Checker costs $0.99 and Check Book Register $0.99 up front. Check Book Register sells 10 one-off in-app purchases. Call Checker asks for nothing beyond the download.

UpkeepUpdate frequency

Call Checker ships an update every 23 months, Check Book Register every 9 days. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 6 level
Call Checker versus Check Book Register: the parameters behind the verdict, then further details
ParameterCall CheckerCheck Book Register
Price$0.99$0.99
Rating—1.9 (29 ratings) — better
Positive reviews0.0% of reviews10.0% of reviews — better
Number of ratings—29 — better
Update frequencyEvery 23 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#166 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB13 MB
Age rating4+4+
DeveloperPiet JonasManu Gupta

Customer experience

Call Checker

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Check Book Register

All ratings29 ratings
Positive20.7%
Neutral3.4%
Negative75.9%
Written reviews50 reviews
Positive10.0%
Neutral2.0%
Negative88.0%

In-app purchases

None

Call Checker

No in-app purchases

10 purchases

Check Book Register

One-time10
  • Email 10 Pdf$0.99
  • Share Pdf$0.99
  • Save 10 files to server$0.99
Show 7 more
  • Email 10 PDFs via Gmail$0.99
  • 5 times Save as,Print and Email$0.99
  • Email 25 Pdf$1.99
  • Email 50 Pdf$2.99
  • Email 100 Pdf$3.99
  • 500 times Save as, Print and Email$4.99
  • 1000 times Save as, Print and Email$6.99

Questions

Is Call Checker free?
Call Checker costs $0.99, with no in-app purchases.
Is Check Book Register free?
Check Book Register costs $0.99, and also offers in-app purchases.
Do Call Checker or Check Book Register have ads?
Neither Call Checker nor Check Book Register shows ads.
Which is updated more often, Call Checker or Check Book Register?
Call Checker ships an update every 23 months, and Check Book Register every 9 days. Most recently, Call Checker was updated on September 22, 2026 and Check Book Register on September 25, 2026.

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