Comparison

Engage Machine vs Decibell

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

Head to head
About

Engage Machine

Manage your business operations with a comprehensive dashboard, communication tools, and opportunity tracking. Schedule appointments, manage contacts, and view key business statistics all from your device.

Highlights
  • Business statistics dashboard
  • Pipeline performance tracking
  • Task management
  • SMS and email communication
  • Opportunity card management
  • Appointment scheduling
  • Contact management
Features
Read full description

Dashboard The dashboard will give you an overall view of the statistics of your business. You can select an individual pipeline and see the performance of that particular section of your business.The Dashboard also gives you the ability to view current and past due tasks. You can also mark tasks complete. Communications Get notifications of new messages right on your device. Communicate through SMS or email to contacts. Opportunities Manage your opportunity cards in each pipeline you have created. Drag and Drop to the appropriate column. Scheduling Manage your appointment schedule right from your device. Schedule appointments for your clients. You can also reschedule, cancel or mark them as a no-show if needed. Contacts Look up the contact details of any of your clients. Add a new contact, add notes or a task. Add a contact to a campaign and even call them.

About

Decibell

Features
Read full description

Decibell gives you a second phone number for texts and calls, without a second SIM or a contract. Keep your personal number private and manage every conversation from one simple inbox. Use your second line for online listings, deliveries, new contacts, or anyone you'd rather not give your personal number. It works over Wi-Fi or mobile data, so it goes wherever you go. WHY DECIBELL • A real phone number for texting and calling, not just in-app chat • Calls ring like a normal call, even when the app is closed • Record calls and get a transcript and a short summary afterwards • Every number and conversation in one inbox • No second SIM, no carrier contract HOW IT WORKS Open the app, pick a number from the ones available, and start texting and calling. That's it. YOUR SECOND LINE, YOUR WAY • Label each number, like "Personal", "Selling" or "Travel" • Separate conversations and history for every number • Set your available hours, with automatic replies and a missed-call text • Schedule texts to send later • Save quick replies for messages you send often • Search across all your conversations CALL RECORDING • Turn on recording for any of your numbers; both people hear an announcement when the call connects • Get a transcript and a short summary of each recording • Find a call by searching what was said • Delete a recording anytime SAFER TEXTING • Scam alerts on suspicious texts from unknown numbers • Block numbers and silence unknown callers FEATURES • Send and receive texts with live delivery status • Photo messages • Voicemail with text transcripts • Internet calling with native call screen • A large keypad that formats numbers as you type and accepts pasted numbers • Call details with earlier calls to the same number • Push notifications for new messages and calls • Home screen widgets for unread texts • App lock • Works on Wi-Fi, 4G and 5G • Contacts with one-tap call and message USE IT ANYWHERE Decibell runs over the internet. Travel, move, or switch networks and your second number stays with you. PRIVACY FIRST Your numbers, your conversations. We don't sell your data and we don't run ads. You choose which AI features you use. PLEASE NOTE • Available numbers are shown in the app and may change over time. • Some services, including many banks and messaging apps, don't send verification codes to internet-based numbers. Check with the service before you rely on it. • Decibell doesn't support emergency calls. Use your regular phone for emergencies. • Calls and texts need an internet connection. SUBSCRIPTION • A subscription is required to get a number and to text and call. Plans and prices are shown in the app before you confirm. • Payment is charged to your Apple ID when you confirm the purchase. • The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it anytime in your App Store account settings. Privacy Policy: https://decibell.app/privacy-policy Terms of Use: https://decibell.app/terms-of-use

Screenshots

Engage Machine4 screens
Decibell4 screens

Verdict

The call

The clearest difference is in-app purchases: Engage Machine at none against Decibell's 2. Engage Machine also leads on iOS requirement (13.0 vs 17.0). Decibell's advantage is update cadence (every 3 days vs every 9 months). On price, 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. Decibell sells 2 in-app purchases, starting at $19.99 per month. Engage Machine asks for nothing beyond the download.

UpkeepUpdate frequency

Engage Machine ships an update every 9 months, Decibell every 3 days. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Engage Machine versus Decibell: the parameters behind the verdict, then further details
ParameterEngage MachineDecibell
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 9 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size99 MB52 MB
Age rating4+4+
DeveloperWinterbourne Media Agency, LLCODBS LLC

In-app purchases

None

Engage Machine

No in-app purchases

2 purchases

Decibell

Subscriptions2
  • Decibell Pro$19.991 Month
  • Decibell Pro (Yearly)$179.991 Year

Questions

Is Engage Machine free?
Engage Machine is free to download, with no in-app purchases.
Is Decibell free?
Decibell is free to download, with in-app purchases available.
Do Engage Machine or Decibell have ads?
Neither Engage Machine nor Decibell shows ads.
Which is updated more often, Engage Machine or Decibell?
Engage Machine ships an update every 9 months, and Decibell every 3 days. Most recently, Engage Machine was updated on October 10, 2026 and Decibell on October 28, 2026.

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