Comparison

Carbon Voice vs SupplySide

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

Head to head
About

Carbon Voice

This app allows teams to communicate asynchronously through voice messages. It automatically transcribes, summarizes, and makes conversations searchable. Users can extract action items and integrate with over 8,000 tools.

Highlights
  • Asynchronous voice messaging
  • Automatic transcription
  • AI-powered summaries
  • Action item extraction
  • Integration with 8,000+ tools
  • Cross-language auto-translation
  • Searchable conversation history
Features
Read full description

Carbon Voice is built for teams who work on the move. Execs, real-estate agents, home builders, field sales teams—anyone doing real work in planes, trains, cars, and everywhere in between. Talk without calling. Skip the phone tag, scheduling, and missed connections. Just tap, talk, and keep working. Conversations happen asynchronously—fast, natural, and effortless. Voice messaging, finally done right. Every message is automatically transcribed, searchable, and AI-summarized so nothing gets lost. “Carbon Voice is a voice productivity powerhouse.” — Ari Meisel Turn conversations into action. Use AI to ask questions about any discussion, generate summaries, track action items, and push follow-ups into 8,000+ tools via Zapier. Your conversations become insight, action, and knowledge. ----- Key Features TAP TO TALK Share instantly and replace calls with asynchronous voice collaboration. Communicate across languages with auto-translation. READ & SEARCH Every message is transcribed. Search, label, organize, and follow up with ease. AI ORGANIZES FOR YOU AI summaries, action items, document generation, and the ability to ask AI anything about your conversations. ----- Voice Memos Capture your own ideas quickly. Keep them organized—or share them with teammates via link, email, or text. ----- Built for Business. Designed for People. Workspaces, SSO, retention policies, access controls, and enterprise-grade security keep your organization aligned and compliant—whether you’re a small team or a global company. ----- Quick Access to Your Voice Ideas - Home widgets for one-tap recording and conversation access - iMessage Extension for instant link sharing - Share Extension for saving audio and files into Carbon Voice - Access your voice memos on the web - Slack integration for notifications and quick access - Google Workspace integration for using Carbon Voice inside Gmail, Docs, and more Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getcarbon.app/privacy Extended Terms of Service: https://getcarbon.app/tos

About

SupplySide

This app connects professionals in the supplement, food, and beverage industries. It facilitates networking, discovery of innovations, and collaboration to drive business forward. The digital companion streamlines event experiences with navigation, scheduling, and matchmaking features.

Highlights
  • Exhibitor list and floor plan
  • Interactive event schedule
  • Personalized agenda creation
  • Matchmaking for business connections
  • Discover ingredient and product innovations
  • Streamlined event navigation
Features
Read full description

SupplySide events bring together the global community of supplement, food and beverage industry professionals. From suppliers and manufacturers to CPG brands and service providers, these events are designed to drive business forward, build meaningful connections and spark innovation across the entire supply chain. At every SupplySide event, attendees and exhibitors experience unmatched networking, discover cutting-edge ingredient and product innovations, and collaborate with partners to move ideas from concept to market. Whether focused on global trends or regional growth, SupplySide events are where business gets done and the future of the industry takes shape. This digital companion is designed to streamline your event experience and serve as your go-to resource for everything onsite. By downloading the mobile app, you can: Navigate effortlessly: Access the exhibitor list and interactive floor plan to move efficiently throughout the venue. Stay organized: Explore the full schedule and add sessions to your personalized agenda so you don’t miss out on key events. Connect strategically: Use matchmaking features to connect with potential partners and foster valuable business relationships and collaborations.

Screenshots

Carbon Voice4 screens
SupplySide4 screens

Verdict

The call

The clearest difference is review sentiment: Carbon Voice at 100% against SupplySide's 0%. Carbon Voice also leads on rating (5.0 vs 3.9) and device support (3 vs 1). SupplySide's advantage is in-app purchases (none vs 12). On price, ratings volume, update cadence 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. Carbon Voice sells 12 in-app purchases, starting at $6.99 per month. SupplySide asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Carbon Voice holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 15 and 12 respectively. Written reviews point the same way: 100% of Carbon Voice's written reviews are positive against 0% of SupplySide's.

UpkeepUpdate frequency

Carbon Voice ships an update every 5 days, SupplySide every 6 days. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Carbon Voice versus SupplySide: the parameters behind the verdict, then further details
ParameterCarbon VoiceSupplySide
PriceFreeFree
Rating5.0 (15 ratings) — better3.9 (12 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings15 — better12
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.4
Further details — not scored
Size206 MB143 MB
Age rating4+17+
DeveloperPhonon X IncInforma Support Services Inc

Customer experience

Carbon Voice

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SupplySide

All ratings12 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

12 purchases

Carbon Voice

Subscriptions12
  • Starter + Global Voice7 Days trial$6.991 Month
  • Lite7 Days trial$10.991 Month
  • Lite + Global Voice7 Days trial$16.991 Month
Show 9 more
  • Standard7 Days trial$17.991 Month
  • Standard + Global Voice7 Days trial$23.991 Month
  • Pro7 Days trial$26.991 Month
  • Starter + Global Voice14 Days trial$69.991 Year
  • Lite14 Days trial$84.991 Year
  • Lite + Global Voice14 Days trial$149.991 Year
  • Standard14 Days trial$155.991 Year
  • Standard + Global Voice14 Days trial$219.991 Year
  • Pro14 Days trial$259.991 Year
None

SupplySide

No in-app purchases

Questions

Is Carbon Voice free?
Carbon Voice is free to download, with in-app purchases available.
Is SupplySide free?
SupplySide is free to download, with no in-app purchases.
Which has better reviews, Carbon Voice or SupplySide?
Carbon Voice is rated higher. Carbon Voice averages 5.0 out of 5 from 15 ratings, while SupplySide averages 3.9 from 12 ratings.
Do Carbon Voice or SupplySide have ads?
Neither Carbon Voice nor SupplySide shows ads.
Which is updated more often, Carbon Voice or SupplySide?
Carbon Voice ships an update every 5 days, and SupplySide every 6 days. Most recently, Carbon Voice was updated on September 10, 2026 and SupplySide on September 19, 2026.

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