Comparison

Buffer vs Sonix app

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

Head to head
About

Buffer

Streamline your social media presence by planning, scheduling, and publishing content across multiple platforms from one app. Engage with your audience and track performance with insightful analytics. Ideal for creators looking to grow their online presence efficiently.

Highlights
  • Cross-platform posting
  • Content scheduling
  • Idea organization
  • Performance analytics
  • Calendar view
  • Apple Watch app
Features
Read full description

Post to every social platform with a single app — simple, flexible, and powerful. Buffer helps creators stay consistent without the busywork. Plan and publish your posts automatically, engage with your audience, and keep track of what’s working, all from your phone. Whether you’re sharing your first TikTok, building an audience on LinkedIn, or running multiple accounts, Buffer gives you the tools to grow without feeling overwhelmed. What’s new in v15.0 • Fresh new design with Apple’s Liquid Glass system • Brand-new Apple Watch app (queues, goals, streaks, ideas) • Capture ideas instantly with the iOS Shortcut, Action Button, or on your wrist • New calendar day view across all channels WHY CREATORS LOVE BUFFER PLAN, SCHEDULE, AND PUBLISH • Share to Instagram, Threads, TikTok, Facebook, LinkedIn, YouTube, Pinterest, Bluesky, Mastodon, and more. • Schedule YouTube Shorts, TikToks, Instagram Reels, and Stories. • Cross-post content across platforms with a single tap KEEP YOUR IDEAS ORGANIZED • Save inspiration in a central content library • Use tags to keep ideas organized by theme or campaign • Move ideas straight to your schedule when ready SEE WHAT WORKS • Simple analytics and reports show your top-performing posts • Track growth, clicks, and engagement A CALENDAR BUILT FOR CREATORS • Get an at-a-glance view of your upcoming posts • Drill down from a monthly to weekly view NEED HELP? Our friendly team is here for you with world-class support via email and social. Email: hello@buffer.com Twitter: @buffer Facebook: http://facebook.com/bufferapp Instagram: @buffer Pinterest: https://www.pinterest.com/bufferapp/ TikTok: https://www.tiktok.com/@bufferapp Privacy Policy: https://buffer.com/privacy Terms of Use: https://buffer.com/legal/terms-of-use/year/2023

About

Sonix app

Connect with friends and teammates through high-definition voice and video chat. Organize into private "crews" with dedicated sub-channels for strategy, jokes, or casual conversation. Share screens, files, and use whiteboards for enhanced collaboration.

Highlights
  • High-definition voice and video chat
  • Create private "crews" and sub-channels
  • Text messaging
  • Screen sharing
  • File and image sharing
  • Whiteboard functionality
Features
Read full description

On Sonix, you can create your groups of friends, called "crews," and experience high-definition, ultra-fast voice chat. You can be perfectly synchronized as a team and dominate the battlefield of your favorite games. You can organize yourself like a pro, see who's available, and directly join those who interest you through text or video chat rooms. With Sonix, it's incredibly easy every day to meet, talk, and exchange. Create "crews" for your teammates and sub-channels for specific strategies, jokes, or just to relax with friends. Each "crew" is accessible only by invitation for exclusive, end-to-end encrypted discussions. In each crew, sub-channel, or with each friend, you can: - Send text messages - Exchange audio and video to develop synergies and laugh together. - Share your screen, live video games, or other content. - Choose which shared screen you want to see. - Create multiple Whiteboards to display important information like game tactics to your crew continuously. - Massively share and store files, images, instant screenshots, memes, and even music to fuel your hype and spread good vibes. Sonix is free, and you'll also find an option for Boost for pros: the Supersonix mode, even faster and with even more storage capacity.

Screenshots

Buffer4 screens
Sonix app4 screens

Verdict

The call

The clearest difference is in-app purchases: Sonix app at none against Buffer's 12. Sonix app also leads on review sentiment (67% vs 55%) and iOS requirement (15.6 vs 18.0). Buffer's advantage is rating (4.7 vs 4.3) and ratings volume (34K vs 6). 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. Buffer sells 11 in-app purchases, starting at $5.99 per month. Sonix app asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Buffer holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Buffer has 34K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 55% of Buffer's written reviews are positive against 67% of Sonix app's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Buffer ships an update weekly, Sonix app fortnightly. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

Scorecard8 real differences · 3 level
Buffer versus Sonix app: the parameters behind the verdict, then further details
ParameterBufferSonix app
PriceFreeFree
Rating4.7 (34K ratings) — better4.3 (6 ratings)
Positive reviews54.6% of reviews66.7% of reviews — better
Number of ratings34K — better6
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#148 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.6 — better
Further details — not scored
Size154 MB279 MB
Age rating4+12+
DeveloperBuffer, Inc.SONIX SA

Customer experience

Buffer

All ratings34,422 ratings
Positive94.0%
Neutral2.7%
Negative3.3%
Written reviews573 reviews
Positive54.6%
Neutral10.1%
Negative35.3%

Sonix app

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Buffer

Reported bugs

5 issues
  • Drafts not registering in visual calendar
  • Inability to reorder scheduled posts
  • Inconsistent behavior between mobile and desktop versions
  • Automatic posting not working as expected
  • Issues with image/video quality and formatting

Requested features

5 requests
  • Add support for Twitter threads
  • Improve visual planning and calendar view
  • Integrate with more platforms like Slack and Discord
  • Allow more customization and control over posts
  • Provide better analytics and performance insights

Sonix app

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Buffer

Subscriptions11
  • Essentials - 1 Channel$5.991 Month
  • Essentials+Team: 1 Channel$11.991 Month
  • Essentials - 2 Channels$11.991 Month
Show 8 more
  • Pro for 1 Month2 variants$14.991 Month
  • Essentials - 3 Channels$17.991 Month
  • Essentials - 4 Channels$23.991 Month
  • Essentials - 5 Channels$29.991 Month
  • Essentials - 6 Channels$35.991 Month
  • Small Business$99.991 Month
  • Small Business for 1 Month$99.991 Month
  • Pro for 1 Year$144.991 Year
None

Sonix app

No in-app purchases

Questions

Is Buffer free?
Buffer is free to download, with in-app purchases available.
Is Sonix app free?
Sonix app is free to download, with no in-app purchases.
Which has better reviews, Buffer or Sonix app?
Buffer is rated higher. Buffer averages 4.7 out of 5 from 34K ratings, while Sonix app averages 4.3 from 6 ratings.
Do Buffer or Sonix app have ads?
Neither Buffer nor Sonix app shows ads.
Which is updated more often, Buffer or Sonix app?
Buffer ships an update weekly, and Sonix app fortnightly. Most recently, Buffer was updated on September 26, 2026 and Sonix app on September 10, 2026.

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