Comparison

Acrobits vs iMI

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

Head to head
About

Acrobits

This powerful SIP softphone allows voice and video calls, messaging, and secure communication over WiFi and mobile data. It works with existing SIP accounts and offers lifetime support and updates.

Highlights
  • Voice and video calling
  • Secure encrypted calls
  • Push notifications
  • Call handover (WiFi/data)
  • Multi-device compatibility
  • Standards-based SIP client
  • Customizable settings
Features
Read full description

Make voice and video calls, send messages, and stay connected with Acrobits Softphone App, a powerful and feature-rich SIP softphone designed for all your calling needs. BEFORE YOU BUY Acrobits Softphone is a SIP client app. It does not come with phone service: you sign in with the SIP account your VoIP provider, PBX or employer gives you. Note: this app does not support call transfer or conference calling. Acrobits Softphone works out of the box with many of the most popular VoIP providers and Bluetooth devices on the market. If you already have SIP service, from work or from any VoIP company, you are ready to go. It brings all the popular features you expect from a SIP app, including support for 5G, voice and video calling, push notifications, call handover between WiFi and data, multi-device compatibility, lifetime access to support and updates, and more. Keep a work line separate from your personal number. Carry a home-office extension in your pocket, or call over WiFi while traveling. Calls run over WiFi and mobile data, so your sip phone works wherever you have a connection, at home or abroad. Bring the account you already have. Acrobits Softphone is a standards-based SIP client, so it registers with Asterisk, FreePBX, 3CX, hosted PBX platforms and everyday business VoIP services alike. Sign in with your SIP account and you have a business softphone dialer that carries your work line anywhere. Encrypted SIP calling keeps every conversation private. Calls stay clear with support for popular audio standards, including Opus, G.722, G.729, G.711, iLBC, and GSM. Need video? It goes up to 720p HD with both H.264 and VP8. Pair it with the Bluetooth headsets and car kits you already use. Push notifications do the waiting, so the app stays reachable in the background. And voice is not the whole story: send messages from the same app when a call is too much. You can set it up your way, with custom call settings, ringtones, and UI options. And because it follows open standards, you are never locked in. Switch providers whenever you like and keep the same app, the same contacts, and the same settings. Acrobits Softphone makes it easy to communicate with friends and family on any device. And it runs on virtually all iPhones and iPads. Don't worry about hidden fees or subscriptions. You pay once, and lifetime support and updates are included. Secure VoIP is part of the deal rather than an upgrade. Try it today, and see why softphone users have trusted Acrobits since 2009.

About

iMI

This AI assistant is designed for manufacturing professionals on the shop floor. It provides answers to technical questions, helps troubleshoot issues, and offers tools for optimizing processes and calculating ROI. Securely store and access your private manufacturing documents.

Highlights
  • AI-powered manufacturing Q&A
  • G-code optimization
  • Machining strategy generation
  • Work instruction drafting
  • ROI calculator
  • Private on-device document vault
Features
Read full description

ARLO is a manufacturing AI built for the shop floor — not a general-purpose chatbot adapted for it. Ask about G-code, feeds and speeds, CAM strategy, toolpath troubleshooting, work instructions, or anything else that comes up during a shift. Get an answer that actually fits your machine, your role, and your experience level. iMI: Inference puts ARLO in your pocket. COLLAB WITH ARLO A full conversational interface for manufacturing questions. Ask follow-ups, work through setups step by step, or think out loud about a problem. Conversation history lets you save, name, and return to sessions — including picking up where you left off across multiple days (Pro). AI TOOLS Structured tools for the tasks you do every day: optimize G-code, generate machining strategies, draft work instructions, summarize documents, translate content, and more. ROI CALCULATOR Build and present the business case for new equipment or process improvements — right on the spot. Choose from four scenarios: • CNC Machine purchase • Cost Per Part reduction • Downtime & OEE improvement • Internal Tool evaluation Fill in the form, tap Generate, and export a branded PDF proposal to share instantly. VAULT — PRIVATE ON-DEVICE KNOWLEDGE Load your own documents — machine manuals, tooling catalogs, post-processor documentation, shop standards — directly into ARLO's context. Vault indexes everything on-device and automatically injects relevant content into your questions. Your documents never leave the app. Available to Pro subscribers. ZERO-TRUST MODE For organizations handling sensitive or proprietary information. Every session is fully stateless — nothing is written to or read from disk, and all data is cleared when the app closes. Pro only. PLANS Free — 5 uses per day. Collab with ARLO. Starter — $9.99/month. 300 uses, all AI Tools, Conversation History. Pro — $19.99/month. 1,000 uses, Vault, Zero-Trust Mode. Additional use packs available as one-time in-app purchases. iMI: Inference is developed by Multiaxis LLC — built by people with decades in manufacturing, for the people who keep shops running. The Power of MULTIAXIS® with the Intelligence of ARLO™ Terms of Use: https://multiaxis.ai/terms.html Privacy Policy: https://multiaxis.ai/privacy.html

Screenshots

Acrobits4 screens
iMI4 screens

Verdict

The call

The clearest difference is price: iMI at Free against Acrobits's $6.99. iMI also leads on rating (5.0 vs 4.2) and update cadence (every 4 days vs every 9 days). Acrobits's advantage is ratings volume (47 vs 3) and chart position (#130 vs unranked). On ads, in-app purchases 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

iMI is free to download; Acrobits costs $6.99 up front. Acrobits sells 1 one-off in-app purchase and iMI sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iMI holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Acrobits has 47 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Acrobits ships an update every 9 days, iMI every 4 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 4 level
Acrobits versus iMI: the parameters behind the verdict, then further details
ParameterAcrobitsiMI
Price$6.99Free — better
Rating4.2 (47 ratings)5.0 (3 ratings) — better
Positive reviews67.6% of reviews—
Number of ratings47 — better3
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFreemium — better
Best chart rank#130 — better—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better18.6
Further details — not scored
Size67 MB12 MB
Age rating17+12+
DeveloperAcrobitsMichael Kaminski

Customer experience

Acrobits

All ratings47 ratings
Positive78.7%
Neutral4.3%
Negative17.0%
Written reviews735 reviews
Positive67.6%
Neutral7.6%
Negative24.8%

iMI

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Acrobits

Reported bugs

7 issues
  • Crashes on open in iOS 9.3
  • Keeps wiping out all settings and history
  • Deletes configuration randomly
  • Failed to received CallerID
  • Periodically disables itself
Show 2 more
  • Push doesn't work
  • Cannot attend calls when phone is locked

Requested features

7 requests
  • SMS support
  • Ability to block calls
  • Customizable ringtones
  • Conference calling
  • Ability to select original iPhone ringtones
Show 2 more
  • Dark mode option
  • Landscape mode for tablets

iMI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Acrobits

One-time1
  • ZRTP For Outgoing Calls$24.99
5 purchases

iMI

Subscriptions2
  • ArloInference Starter$9.991 Month
  • ArloInference Pro$19.991 Month
One-time3
  • 250 Uses — Project Sprint$4.99
  • 600 Uses — Heavy Week Pack$9.99
  • 1500 Uses — Power User Pack$19.99

Questions

Is Acrobits free?
Acrobits costs $6.99, and also offers in-app purchases.
Is iMI free?
iMI is free to download, with in-app purchases available.
Which has better reviews, Acrobits or iMI?
iMI is rated higher. Acrobits averages 4.2 out of 5 from 47 ratings, while iMI averages 5.0 from 3 ratings.
Do Acrobits or iMI have ads?
Neither Acrobits nor iMI shows ads.
Which is updated more often, Acrobits or iMI?
Acrobits ships an update every 9 days, and iMI every 4 days. Most recently, Acrobits was updated on November 8, 2026 and iMI on October 31, 2026.

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