# Paraphrase Tools vs Filter Calculator

The clearest difference is ads: Paraphrase Tools at none against Filter Calculator's shown. Paraphrase Tools also leads on update cadence (monthly vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Paraphrase Tools sells 3 in-app purchases, starting at $7.99 per 7 days and Filter Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Paraphrase Tools ships an update monthly, Filter Calculator every 5 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Paraphrase Tools | Filter Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 39 MB | 53 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amina Sehar](https://appshunter.io/developer/1823051162) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Paraphrase Tools

[App page](https://appshunter.io/ios/app/paraphrase-tools-humanize-ai/id6754504221)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $43.49 | per year |


### Filter Calculator

[App page](https://appshunter.io/ios/app/filter-calculator-electronics/id6754560517)

Design various types of electronic filters, including RC, RL, RLC, and passive crossovers, with customizable orders and alignments. Instantly obtain component values and Bode insights for lab, classroom, or audio projects. Ideal for engineers, hobbyists, and students.

**Highlights:** Design RC, RL, and RLC filters (2nd-7th order), Butterworth & Chebyshev alignments, Passive crossover calculations, Twin-T notch filter design, Instant component values, Bode insights, Offline-friendly dark mode UI

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $2.99 | one-time |


## Frequently asked questions

### Is Paraphrase Tools free?

Paraphrase Tools is free to download, with in-app purchases available.

### Is Filter Calculator free?

Filter Calculator is free to download, with in-app purchases available.

### Do Paraphrase Tools or Filter Calculator have ads?

Filter Calculator shows ads; Paraphrase Tools does not.

### Which is updated more often, Paraphrase Tools or Filter Calculator?

Paraphrase Tools ships an update monthly, and Filter Calculator every 5 months. Most recently, Paraphrase Tools was updated on October 9, 2026 and Filter Calculator on October 13, 2026.

---

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