Asterysk vs Carrus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Asterysk
This AI chat assistant integrates with your browser to let you interact with any webpage. It supports multiple leading AI models and allows you to use your own API keys for enhanced privacy and direct interaction with AI providers.
- AI chat on any webpage
- Support for Gemini, OpenAI, Anthropic
- Bring Your Own API Key (BYOK)
- Context-aware page analysis
- Conversation history by domain
- Slash commands for quick actions
- Floating window or sidebar view
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Asterysk brings AI chat to any webpage in your Browser. Use your own API keys to chat with leading AI models — no middleman, no tracking, no servers. Features: - Multi-AI: Switch between Google Gemini, OpenAI, and Anthropic models on the fly - BYOK: Bring your own API keys — your data goes directly to the provider - Context Aware: Reads the current page so you can ask about any article, doc, or code - Conversation History: Chats organized by domain, pick up right where you left off - Slash Commands: Quick actions like summarize, explain, analyze, and generate code - Floating or Sidebar: Choose between a draggable window or full-height sidebar - 100% Privacy: No servers, no tracking — everything stays on your device
Carrus
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Carrus keeps every car and motorbike you own running right — and tells you what's wrong when something feels off. Log a service in seconds. Get reminded before the next one is due, by mileage AND time. Scan a paper receipt and watch it fill itself in. And when your vehicle makes a noise you don't recognise, or a shop hands you a quote, ask Carson. WHAT'S DUE, BEFORE IT'S LATE Carrus tracks every interval two ways — distance and time — because a car that barely moves still needs servicing. Your garage shows one glance per vehicle: all good, due soon, or overdue. SCAN A RECEIPT, SKIP THE TYPING Photograph a service receipt and Carrus reads the tasks, the date, the cost and the mileage, then fills the log in for you. Tracking only works if logging is easier than not logging. CARSON, THE AI MECHANIC WHO KNOWS YOUR CAR Describe a symptom in plain words — a grinding noise when braking, a warning light, a smell — and get the most likely causes, what to check first, and how urgent it is. Ask what a repair should cost where you live, or whether the quote in your hand is fair. Ask which oil to use, whether a used model is reliable, or when you last rotated the tires — Carson knows your service history, what's due and your fuel numbers. When one detail would change the answer, it asks once and gives you options to tap. It can log a fill-up or add a task for you, too. Carson is there to tell you what you're walking into, not to replace your mechanic. MOTORBIKES, WITH THE RIGHT SCHEDULE Add a bike and Carrus builds a schedule for it: chain, valve clearance and fork oil instead of car tasks. Pick your type — standard, cruiser, touring, adventure, dirt or scooter — and it adjusts. FUEL AND RUNNING COSTS Log fill-ups with cost, drag the gauge to set your level, and let the tank follow your odometer. See what each vehicle costs you by month, and your real cost per mile or kilometre. 44 currencies. GLOVEBOX Scan registration, insurance and licence documents into sharp PDFs and keep them with each vehicle. Get reminded 30, 7 and 1 day before anything expires. Scans stay on your phone and in your own iCloud; Carrus never receives them, and only the title and expiry date sync. A RECORD WORTH SOMETHING AT RESALE Export the full service history as a PDF. "I looked after it" is worth more with dates, mileages and costs attached. HONEST ABOUT WHAT IT KNOWS Where Carrus has real manufacturer intervals for your model year, it uses them and says so. Where it doesn't, it falls back to a sensible schedule for your vehicle category — and labels that too, rather than passing an estimate off as your factory schedule. Motorbike schedules are currently standard estimates. WORKS OFFLINE Your garage is on your phone. Log a service in an underground car park and it syncs when you're back. PLANS Free covers one vehicle with the core tracking and a taste of Carson. Lite adds unlimited vehicles, custom tasks and PDF export — as a subscription or a one-time purchase. Premium adds the full Carson allowance and receipt scanning, with a 7-day free trial on the annual plan. Lite Lifetime owners get their own Premium price. Carrus is an independent app, not affiliated with or endorsed by any vehicle manufacturer. Maintenance intervals are based on publicly available guidelines. Always consult your owner's manual for official recommendations. Carrus is available in English and Spanish. YOUR DATA STAYS YOURS • Your records live on your device first. Sign in to sync across phones. • We never sell your data. • Carson messages and receipt photos go to OpenAI only to be processed — never stored on our servers, never used to train AI. • Full export and account deletion any time in Settings. QUESTIONS? Email hello@carrus.app — we read every message. LEGAL Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Service terms: https://carrus.app/terms Privacy Policy: https://carrus.app/privacy
Screenshots
Verdict
The clearest difference is device support: Asterysk at 3 against Carrus's 1. Asterysk also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. Asterysk sells 3 one-off in-app purchases and Carrus sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Asterysk ships an update weekly, Carrus every 6 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.
| Parameter | Asterysk | Carrus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Shivkanth Bagavathy | Abdulrahman Mohamed |
In-app purchases
Asterysk
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99
Carrus
- Carrus Premium Monthly$4.991 Month
- Carrus Premium Yearly7 Days trial$39.991 Year
- Carrus Lite Lifetime$19.99
- Carrus Premium Lifetime Upgrade$49.99
- Carrus Premium Lifetime$69.99









