# EV Smart Book vs NegaWATT

EV Smart Book and NegaWATT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EV Smart Book ships an update monthly, NegaWATT every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | EV Smart Book | NegaWATT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (12 ratings)](https://appshunter.io/ios/app/ev-smart-book/id1425926535/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 66 MB | 160 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Porto Editora](https://appshunter.io/developer/350149863) | [Albatroz Digital, Lda.](https://appshunter.io/developer/1387867940) |

## What reviewers say

### EV Smart Book

[App page](https://appshunter.io/ios/app/ev-smart-book/id1425926535)

Access your digital textbooks on your mobile device. This app provides interactive resources, offline access, and note-taking features to enhance learning for students in grades 1-12. Earn rewards by using the app to study.

**Highlights:** Digital textbook access, Interactive learning resources, Offline book consultation, Note-taking and bookmarking, Search functionality, Reward system for usage

**In-app purchases:** none


### NegaWATT

[App page](https://appshunter.io/ios/app/negawatt/id6467116795)

**In-app purchases:** none


## Frequently asked questions

### Is EV Smart Book free?

EV Smart Book is free to download, with no in-app purchases.

### Is NegaWATT free?

NegaWATT is free to download, with no in-app purchases.

### Do EV Smart Book or NegaWATT have ads?

Neither EV Smart Book nor NegaWATT shows ads.

### Which is updated more often, EV Smart Book or NegaWATT?

EV Smart Book ships an update monthly, and NegaWATT every 2 weeks. Most recently, EV Smart Book was updated on November 2, 2026 and NegaWATT on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*