NerdBook

Giampiero Sierra Reference iPhoneiPadiPod touch

NerdBook is a free Reference app for iPhone and iPad by Giampiero Sierra. Rated 3.5/5 from 2 ratings. Requires iOS 17.5. Updated October 7, 2025.

Rating: 3.5; 2 ratings
Price: Free; on the App Store
Size: 2 MB; Age 4+
Updated: Oct 7; 2025 · v1.6

Download on theApp Store See alternatives

Screenshots

About NerdBook

Find synonyms to fit any need. Or improve your rap flow with sound-alike words! From lyrical to nerdy, NerdBook has you covered.

What’s new

Version 1.6 · Updated October 7, 2025

Updated widget layout

App privacy

The developer, Giampiero Sierra, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

NerdBook is a free Reference app for iPhone, iPad and iPod touch, developed by Giampiero Sierra. It is rated 3.5 out of 5 from 2 ratings on the App Store, requires iOS 17.5 or later and is 2 MB to download. It was first released on September 23, 2024 and last updated on October 7, 2025.

Category: Reference
Rating: 3.5 / 5 (2 ratings)
Price: Free
Version: 1.6
Size: 2 MB
Requires: iOS 17.5 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: September 23, 2024
Last updated: October 7, 2025
Developer: Giampiero Sierra

View on the App Store

Listing score

Our ASO checklist, run on this App Store listing.

Grade D

Average rating (3.5): Low. Many people skip apps under 4 stars.
Number of ratings (2): More ratings make the average more convincing.
Last update (Oct 7, 2025): 392 days ago.

See all 8 issues →

Build an app like NerdBook

Get a ready prompt for Claude Code, Cursor or Lovable: its features and business model, and what its users complain about, for an original app of your own.

Make the prompt →

Is this your app?

Give it a free website

Landing page, privacy policy and app-ads.txt, generated from your store listing.

Create it free

Alternatives to NerdBook

Looking for apps like NerdBook? Here are 6 similar apps on the App Store. The highest rated is Daily Vocabulary: Wordson (5.0/5), and 5 of the 6 are free to download.

NerdBook vs. alternatives
App	Rating	Price	Last updated	Compare
NerdBook	3.5 / 5 (2 ratings)	Free	October 7, 2025
Learn Web Development [Pro]	–	4.99 USD	Jan 15, 2026	Compare
Cuspart: Dict	–	Free	Sep 24, 2024	Compare
RandleSimulation	–	Free	Nov 12, 2025	Compare
Lambda calculus	3.3 / 5 (3)	Free	Nov 4, 2024	Compare
Smart Ujjwal Academy	–	Free	Jun 24, 2026	Compare
Daily Vocabulary: Wordson	5.0 / 5 (1)	Free	Oct 19, 2026	Compare

Compare NerdBook with the top alternatives: ratings, updates, ASO score and keyword gaps →