Comparison

TechTools App vs NumberBook

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

Head to head
About

TechTools App

This app provides essential tools for lighting technicians, desk operators, and network administrators. It includes calculators for DMX addressing, IP addresses, and beam calculations, along with various useful converters for technical data.

Highlights
  • DMX addressing wizard
  • IP address and class calculator
  • Color code reference
  • Beam calculator
  • Electrical cable color codes
  • Ingress Protection Code guide
  • Technical data converters
Features
Read full description

This application aims to be in the pocket of any technician, light desk operator, or stage network administrator. You will find the most useful tools for a lighting technician or manager, a desk operator or a network administrator. - DMX addressing wizard and dipswitch - IP addresses and classes - Color code - Beam Calculator - Electrical cable colors - Ingress Protection Code As well as several converters : - percentage / decimal on 24 bits, i.e. 3 bytes (for the usual coarse/fine/ultra values on the lighting desks and in the fixtures). - CIDR notation / dotted decimal notation for network masks - hexadecimal / decimal for ART-net universes notations, for example

About

NumberBook

Instantly identify unknown callers and protect yourself from scams with a vast global database. Perform reverse phone lookups to discover caller identity, location, and user-reported categories like spam or trustworthy. Block unwanted numbers with a personalized blacklist.

Highlights
  • Unknown call identification
  • Reverse phone lookup
  • Spam and scam protection
  • Company and business identification
  • Customizable blacklist
  • User-reported number categories
Features
Read full description

Finding unknown numbers was never easier! Identify up to 99% of unknown calls with NumberBook: Who Is Calling. Our global database of 52 million analyzed numbers and companies instantly protects you from known phone scams. Our phone book is here to help you understand who is on the other end of the line. But wait - there is more! Who Is Calling isn't an ordinary number book. Through reverse phone lookup, you can see the number's identity, country, and even location. You can finally live spam-call-free and never miss a legitimate phone call again! WHY TO USE NUMBER BOOK: WHO IS CALLING? It's fast - type in an unknown number; the number book will identify it and give you context on who's calling. It's easy - Number Book: Who Is Calling makes phone number lookup pleasant and straightforward. It's secure - Number Book: Who Is Calling does not gather or monitor your personal data. ALL NUMBER BOOK: WHO IS CALLING FEATURES - Large phone numbers database (regularly updated) - Reverse phone lookup - Company & Business identification - Caller ID - Reporting numbers - Blacklist LARGE PHONE NUMBERS DATABASE We have more than 52 000 000 phone numbers in our database. Our users are helping us by adding new phone numbers every day. We collaborate with companies to make your experience with couriers, companies, or services much smoother. REVERSE PHONE LOOKUP You can search any phone number before you call back. After you type in a number, you will find supplemental information like category, country, location, and comments from other users. There are three categories of phone numbers: spam, suspicious and trustworthy. COMPANY & BUSINESS IDENTIFICATION Number Book: Who is Calling isn't only about finding a number. An essential feature of our app is the identification of companies. You will see on your screen - service, company, and dining places. CALLER ID IDENTIFICATION Number Book: Who is Calling identifies all incoming calls. You will immediately know from which category the unknown number belongs. In some cases, you will see the company's number - for example, Uber, Bolt, Deliveroo, etc. REPORTING NUMBERS All users can add new phone numbers to our database, write comments and choose a category for all numbers. BLACKLIST Add unwanted phone numbers to your personalized blacklist. You decide which phone numbers will be automatically blocked. All mentioned features are part of premium subscription, which is mandatory for access to Who Is Calling. Auto-renewing subscription cost $1.99 monthly / $14.99 yearly - price varies by country. __________________ Privacy Policy: https://www.numbo.com/privacy-policy/ Terms of Use: https://www.numbo.com/terms-of-service/

Screenshots

TechTools App4 screens
NumberBook4 screens

Verdict

The call

The clearest difference is review sentiment: TechTools App at 100% against NumberBook's 20%. TechTools App also leads on in-app purchases (none vs 2). NumberBook's advantage is price (Free vs $4.00) and update cadence (every 2 months vs every 25 months). On 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

NumberBook is free to download; TechTools App costs $4.00 up front. NumberBook sells 2 in-app purchases, starting at $3.99 per month. TechTools App asks for nothing beyond the download.

UpkeepUpdate frequency

TechTools App ships an update every 25 months, NumberBook every 2 months. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
TechTools App versus NumberBook: the parameters behind the verdict, then further details
ParameterTechTools AppNumberBook
Price$4.00Free — better
Rating—2.5 (6 ratings) — better
Positive reviews100.0% of reviews — better20.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 25 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.112.1 — better
Further details — not scored
Size16 MB36 MB
Age rating17+4+
DeveloperNoe LoridanNumbo s.r.o.

Customer experience

TechTools App

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NumberBook

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

None

TechTools App

No in-app purchases

2 purchases

NumberBook

Subscriptions2
  • Premium - one month$3.991 Month
  • Premium - one year3 Days trial$14.991 Year

Questions

Is TechTools App free?
TechTools App costs $4.00, with no in-app purchases.
Is NumberBook free?
NumberBook is free to download, with in-app purchases available.
Do TechTools App or NumberBook have ads?
Neither TechTools App nor NumberBook shows ads.
Which is updated more often, TechTools App or NumberBook?
TechTools App ships an update every 25 months, and NumberBook every 2 months. Most recently, TechTools App was updated on November 3, 2026 and NumberBook on November 3, 2026.

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