Comparison

Blind vs Principal AI

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

Head to head
About

Blind

Connect anonymously with verified employees from top companies to discuss work-life challenges, career advice, and job opportunities. Share insights, compare salaries, and read company reviews in a secure, professional community.

Highlights
  • Anonymous professional discussions
  • Industry-specific forums
  • Company-specific forums
  • Salary comparison tool
  • Job board and interview prep
  • Company reviews
  • Direct messaging
Features
Currently charting
Read full description

Blind is the world’s largest anonymous professional network, with more than 12 million verified members sharing what’s really happening at work. Layoffs. Reorgs. Hiring freezes. Return-to-office mandates. Salary changes. Leadership drama. Company rumors. Career advice. From Google and JPMorgan to leading AI companies and emerging startups, get firsthand workplace news, conversations and perspectives from the people closest to them. NO WORK EMAIL? NO PROBLEM. Verify with work email, Linkedin or your work history to gain full access to company channels, private lounges and more. Sign on with a personal email to get read only access to public channels. TALK ABOUT WORK ANONYMOUSLY Talk openly about the things you can’t always say at work. Compare notes with coworkers, share what’s happening inside your company and get candid advice from people who understand your world of work. Blind is built for anonymous workplace conversations, so you can speak freely without putting your real name on your posts. SEE WHAT’S HAPPENING AT WORK When layoffs, reorganizations, leadership changes and major company news break, employees come to Blind to share what they’re seeing and hearing in real time. Join discussions across thousands of companies and industries about: • Layoffs, hiring and reorganizations • Leadership and RTO changes • Salaries, bonuses and benefits • Promotions and performance reviews • Company culture and management • Interviews, offers and referrals • Industry and workplace trends KNOW YOUR WORTH Explore salary data by role, company, location and experience. Compare compensation, prepare for negotiations and make better-informed career decisions. MAKE YOUR NEXT CAREER MOVE Explore jobs and learn what it’s really like to work somewhere before you apply or accept. Read company reviews and get interview, offer and referral advice from people who have been through the hiring process. FIND YOUR COMMUNITY Explore communities around your company, industry, role and interests. Ask questions, exchange advice and connect with people who share your career interests and experiences. Want more control over your experience? Subscribe to Clean Feed to remove ads from your feed and hide posts containing keywords you don’t want to see. ANONYMOUS BY DESIGN Blind separates your work verification from what you say and do on the platform, so you can verify where you work without attaching your identity to your activity. Because of this separation, Blind cannot retrieve forgotten passwords. If you lose access, you may need to create a new account. Rooted or jailbroken devices cannot access Blind. Please download Blind only from the official App Store. Teamblind Terms of Use & Sale: https://us.teamblind.com/setting/term Teamblind Privacy Policy: https://us.teamblind.com/setting/privacy Questions? blindapp@teamblind.com Advertising: advertising@teamblind.com

About

Principal AI

Visualize GitHub activity with a unique 2D representation of your repository's structure. Track commits, view file changes, and explore project history in an engaging, visual format. Designed for developers who appreciate code as an art form.

Highlights
  • Live Activity Feed
  • File City visualization
  • Commit details
  • Commit timeline
  • Pull-to-refresh
  • Swipe navigation
Features
Read full description

Principal AI transforms GitHub activity into a visual experience. Watch commits come to life through File City — a two dimensional visualization that turns your repository's structure. WHAT YOU'LL SEE • Live Activity Feed — Recent commits from featured repositories, grouped by hour • Change Visualizations — Changed Files Highlighted • Commit Details — Author, message, timestamps, and code stats at a glance • Commit Timeline — Swipe through commits and watch the city change with each one DESIGNED FOR DEVELOPERS Built for those who appreciate code as craft. Whether you're tracking your favorite open source projects or just want a beautiful way to see what's happening in the developer world, Principal AI brings GitHub activity to your pocket. FEATURES • Pull-to-refresh to see the latest commits • Swipe vertically between repositories • Swipe horizontally between commits • Tap the commit timeline to jump between changes No account required to browse the activity feed. From Noetic Labs — building tools for developers who see code differently.

Screenshots

Blind4 screens
Principal AI3 screens

Verdict

The call

The clearest difference is in-app purchases: Principal AI at none against Blind's 13. Principal AI also leads on ads (none vs shown) and rating (5.0 vs 4.6). Blind's advantage is ratings volume (14K vs 3) and chart position (#76 vs unranked). On price, update cadence, device support and iOS requirement 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. Blind sells 11 in-app purchases, starting at $5.99 per month. Principal AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Principal AI holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Blind has 14K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Blind ships an update every 2 weeks, Principal AI every 4 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 5 level
Blind versus Principal AI: the parameters behind the verdict, then further details
ParameterBlindPrincipal AI
PriceFreeFree
Rating4.6 (14K ratings)5.0 (3 ratings) — better
Positive reviews11.0% of reviews—
Number of ratings14K — better3
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#76 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size126 MB44 MB
Age rating17+4+
DeveloperTeamblind incFernando Ramirez

Bugs and requests

Blind

Reported bugs

3 issues
  • Keyboard disappearing during search
  • Inconsistent navigation and UI issues
  • Notifications not working as expected

Requested features

3 requests
  • Dark mode option
  • Improved moderation and community guidelines
  • Global accessibility

Principal AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Blind

Subscriptions1
  • Clean Feed7 Days trial$5.991 Month
One-time10
  • 20 B$2.99
  • 20 B$3.99
  • 60 B$6.99
Show 7 more
  • 60 B$9.99
  • 130 B$14.99
  • 130 B$19.99
  • 293 B$29.99
  • 350 B$39.99
  • 350 B$44.99
  • 900 B$99.99
None

Principal AI

No in-app purchases

Questions

Is Blind free?
Blind is free to download, with in-app purchases available.
Is Principal AI free?
Principal AI is free to download, with no in-app purchases.
Which has better reviews, Blind or Principal AI?
Principal AI is rated higher. Blind averages 4.6 out of 5 from 14K ratings, while Principal AI averages 5.0 from 3 ratings.
Do Blind or Principal AI have ads?
Blind shows ads; Principal AI does not.
Which is updated more often, Blind or Principal AI?
Blind ships an update every 2 weeks, and Principal AI every 4 weeks. Most recently, Blind was updated on October 19, 2026 and Principal AI on October 12, 2026.

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