# brrr vs Tersa

The clearest difference is in-app purchases: Tersa at none against brrr's 2. Tersa also leads on review sentiment (100% vs 85%) and iOS requirement (13.0 vs 17.6). brrr's advantage is chart position (#104 vs unranked). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. brrr sells 2 in-app purchases, starting at $0.99 per month. Tersa asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | brrr | Tersa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (15 ratings)](https://appshunter.io/ios/app/brrr-send-push-notifications/id6755617665/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 84.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | Free |
| Best chart rank | **#104** | — |
| Size | 9 MB | 122 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simon B. Støvring](https://appshunter.io/developer/423532907) | [Denis Kosov](https://appshunter.io/developer/1563252853) |

## What reviewers say

### brrr

[App page](https://appshunter.io/ios/app/brrr-send-push-notifications/id6755617665)

**Currently charting:** #104 Top Grossing · Developer Tools (US App Store)

Trigger notifications on your devices via HTTP requests from scripts, automations, or servers. This app offers a simple webhook for instant alerts, image attachments, and on-device history, integrating with Focus filters for context-aware delivery.

**Highlights:** Trigger notifications via HTTP requests, Send alerts to all or single devices, Open links directly from notifications, Attach images to notifications, On-device notification history, Focus filter integration

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |


### Tersa

[App page](https://appshunter.io/ios/app/tersa-circuit-simulator/id6805903884)

Design and analyze analog, digital, and RF circuits directly on your iPhone or iPad. Explore circuit behavior with various simulations and visualize results on clear plots. Supports SPICE model import and local project exploration.

**Highlights:** Schematic building, DC operating point analysis, AC and transient analyses, S-parameter analysis, Smith chart visualization, SPICE model import, Local simulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is brrr free?

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

### Is Tersa free?

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

### Do brrr or Tersa have ads?

Neither brrr nor Tersa shows ads.

### Which is updated more often, brrr or Tersa?

brrr ships an update every 2 weeks, and Tersa every 2 weeks. Most recently, brrr was updated on October 24, 2026 and Tersa on October 18, 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.*