Comparison

brrr vs VoltKit

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

Head to head
About

brrr

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
Read full description

Trigger notifications from anything that can send an HTTP request: agents, scripts, automations, CI jobs, servers, smart home setups, or personal tools. No dashboard. No account setup. No unnecessary complexity. Just a small webhook that works. With brrr, you can: • Send notifications to all your devices or a single device • Trigger notifications from agents, scripts, and automations • Break through mute and Focus mode with critical notifications • Open links directly from notifications • Attach images to notifications • Keep an on-device notification history • Decide when notifications appear using Focus filters GREAT FOR AGENTS brrr is useful for agents and automations. Have an agent notify you when it is waiting for input, when a task finishes, when a run fails, when a deploy completes, or when something needs your attention immediately. FOCUS FRIENDLY brrr integrates with Focus filters so you can decide which notifications are allowed in different contexts. For example, allow work notifications during Work Focus while muting everything else. PRIVATE BY DESIGN Webhook secrets are generated on-device, and data stays tied to your iCloud account. brrr stores only what is required to verify webhook requests and deliver notifications through Apple Push Notification Service. Notification contents are not stored on the backend, and on-device history stays on your device. WHO IT’S FOR If you want a big dashboard packed with options and complexity, this probably is not for you. If you want a clean, fast way to make your devices go brrr, you will feel at home. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

VoltKit

Features
Read full description

VoltKit is a premium, high-performance electrical toolkit designed for engineers, electricians, and hobbyists. With a sleek, minimalist search-first interface and a suite of precision calculators, it turns complex electrical formulas into instant results. From Ohm’s Law to Wire Gauge analysis, VoltKit is the only electrical companion you need

Screenshots

brrr4 screens
VoltKit4 screens

Verdict

The call

The clearest difference is in-app purchases: VoltKit at none against brrr's 2. VoltKit also leads on iOS requirement (13.0 vs 17.6). brrr's advantage is chart position (#114 vs unranked). On price, update cadence, 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

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

UpkeepUpdate frequency

brrr ships an update every 2 weeks, VoltKit every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 8 level
brrr versus VoltKit: the parameters behind the verdict, then further details
ParameterbrrrVoltKit
PriceFreeFree
Rating4.5 (15 ratings) — better—
Positive reviews84.6% of reviews—
Number of ratings15 — better—
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
Best chart rank#114 — better—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS17.613.0 — better
Further details — not scored
Size9 MB22 MB
Age rating4+4+
DeveloperSimon B. Støvringkudrethan varol

In-app purchases

2 purchases

brrr

Subscriptions2
  • Monthly$0.991 Month
  • Yearly$9.991 Year
None

VoltKit

No in-app purchases

Questions

Is brrr free?
brrr is free to download, with in-app purchases available.
Is VoltKit free?
VoltKit is free to download, with no in-app purchases.
Do brrr or VoltKit have ads?
Neither brrr nor VoltKit shows ads.
Which is updated more often, brrr or VoltKit?
brrr ships an update every 2 weeks, and VoltKit every 10 days. Most recently, brrr was updated on October 30, 2026 and VoltKit on October 31, 2026.

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