Comparison

Hello CG vs Aivi

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

Head to head
About

Hello CG

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"Hello CG” is an Internet Telephony based Soft Phone that enables you to receive and make calls on your smartphone. Connection is made to the dedicated central hosted Switching system. The App enables VoIP calls over 4G and WiFi networks and supports different types of codecs. Note: you need to have an account from your VoIP provider in order to use this software. This is a supplier specific application and not a generic VoIP service. More information can be found on the provider’s website.

About

Aivi

Display smart home device status on your iPhone's lock screen and Dynamic Island. Track appliances, EV charging, and more with a simple API integration. Share real-time updates with family.

Highlights
  • Persistent lock screen display
  • Dynamic Island integration
  • Universal device compatibility
  • Simple REST API
  • Family sharing of activities
  • Home Assistant integration
Features
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Your dishwasher, your 3D printer, your EV charger, live on your Lock Screen. And now your whole home at your fingertips on the Home Screen. Aivi turns one HTTP request into a Live Activity or a widget on iPhone, Apple Watch and CarPlay. If Home Assistant, a script, or anything else in your stack can make an HTTP call, Aivi can display it. No app to build, no push certificates, no SDK. NEW: SWITCHBOARD - Up to eight tappable tiles on your Home Screen: scenes, lights, the garage door, the cat feeder - Tap a toggle and watch it confirm the moment your home answers. If nothing answers, the tile tells you - Pictures, colour gradients and your own words for every state, like "Open" and "Closed" - Presses arrive as events over a live stream or a webhook, so any automation can act on them WIDGETS - Eleven templates: switchboard, progress, gauge, trend charts, battery levels, electricity prices, countdown, budget, energy flow, list and status - Every size, including the extra-large portrait size in iOS 27 - Widget Board, watch face complications and Smart Stack - Looks native everywhere: the tinted Home Screen, StandBy on the nightstand LIVE ACTIVITIES - Dishwasher and washing machine cycles with live countdowns - 3D prints with progress and time remaining - EV charging with charge level and completion estimate - Always visible on the Lock Screen and in the Dynamic Island until they're done KEY FEATURES - Family sharing: set up once, send an invite link, and everyone's devices stay in step. Subscribers never pay - Simple REST API: integrate in minutes with curl, a script or any HTTP client - Push, not poll: updates go out only when something changes - Home Assistant ready: quick-start blueprints, or the Aivi integration Start with a free 7-day trial. Only the owner needs a subscription; everyone you share with rides along free. ¹ Live Activities on Mac require macOS Sequoia or later and are not available in the EU. Widgets require iOS 26 or later; Live Activities work from iOS 18. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Hello CG4 screens
Aivi4 screens

Verdict

The call

The clearest difference is in-app purchases: Hello CG at none against Aivi's 2. Hello CG also leads on iOS requirement (16.0 vs 18.4). Aivi's advantage is update cadence (every 2 weeks vs every 24 months) and device support (3 vs 1). On price and ads 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. Aivi sells 2 in-app purchases, starting at $2.99 per month. Hello CG asks for nothing beyond the download.

UpkeepUpdate frequency

Hello CG ships an update every 24 months, Aivi every 2 weeks. The most recent releases landed on October 26, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 5 level
Hello CG versus Aivi: the parameters behind the verdict, then further details
ParameterHello CGAivi
PriceFreeFree
Rating—3.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 24 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better18.4
Further details — not scored
Size115 MB38 MB
Age rating17+4+
DeveloperCommon Ground Works Sdn BhdKrzysztof Jagiello

In-app purchases

None

Hello CG

No in-app purchases

2 purchases

Aivi

Subscriptions2
  • Monthly subscription7 Days trial$2.991 Month
  • Yearly subscription7 Days trial$23.991 Year

Questions

Is Hello CG free?
Hello CG is free to download, with no in-app purchases.
Is Aivi free?
Aivi is free to download, with in-app purchases available.
Do Hello CG or Aivi have ads?
Neither Hello CG nor Aivi shows ads.
Which is updated more often, Hello CG or Aivi?
Hello CG ships an update every 24 months, and Aivi every 2 weeks. Most recently, Hello CG was updated on October 26, 2026 and Aivi on October 9, 2026.

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