Comparison

OptiSigns Admin vs Sintra

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

Head to head
About

OptiSigns Admin

Transform any TV or smart device into a dynamic digital sign for your business. Easily manage and automate content remotely, displaying special offers, menus, events, and important information instantly. Ideal for restaurants, bars, offices, and more.

Highlights
  • Turn any TV/smart device into a digital sign
  • Remote content management
  • Automate content display
  • Drag-and-drop interface
  • Display images, videos, and documents
  • Easy to use
Features
Read full description

Turn any TV or smart device into a digital sign. Business can transform their TV into a digital sign. Check out our blog for more uses at optisigns.com/blog/ Whether you are running a restaurant, a bar, a nightclub, an office, or a number of other businesses a digital sign can help improve your communication of special offers, products, events, menus ,special information and much more. Maximize the opportunity of having any screen in your business by keeping displaying the most valuable information at any time, automatically. With OptiSigns you can transform any screen into a digital sign that can be easily managed, or automated, remotely. With drag-and-drop functionality, and point and click easy to use interfaces, you can easily display any images, videos, or documents from your computer to any screen connected to the internet. Take control of your screen and start displaying your most valuable content, instantly!

About

Sintra

This app provides a team of AI employees to handle various business tasks like social media, email, sales, and customer support. It learns your business to generate content and responses that sound like you, acting as a second brain to help you grow faster without a large team. You can manage multiple businesses with separate workspaces and review all AI-generated work before it's published.

Highlights
  • AI-powered task delegation
  • Content creation and scheduling
  • Email and customer support automation
  • Sales outreach and follow-up
  • Daily planning and note-taking
  • Business strategy and pricing analysis
  • Website building and hosting
  • Data reporting and forecasting
Features
Read full description

Sintra AI gives you a team of 12 AI Employees that learns your business, so it’s not all on you anymore. Hand off social media, email, customer support, sales, and more, then get work back that sounds like you, not like AI. Sintra AI is built for you if your business runs on what’s in your head: your clients, ideas, know-how, and your voice. It becomes the second brain that holds all of it, so you can do more and grow faster without hiring or managing a big team. WHAT YOU CAN HAND OFF Social media: Soshie plans your content calendar, writes your posts, creates the images, and schedules it all Writing: Penn writes blog posts, website copy, and proposals in your voice Email: Emmie writes and sends your newsletters and promotions Sales: Milli drafts your outreach and follows up with the leads who never replied Customer support: Cassie answers customer emails and Facebook comments in your voice Your day: Vizzy plans your day from your inbox and calendar, and takes your meeting notes Strategy: Buddy pressure-tests your pricing and plans, and gives you someone to bounce ideas off SEO: Seomi finds the keywords worth ranking for and explains why a page isn’t showing up in search Website: Commet builds your site, rebuilds the one you’ve outgrown, and hosts it Numbers: Dexter turns your data into reports, budgets, and forecasts Goals: Gigi checks in every day and keeps you on track Recruiting: Scouty writes job ads and screens candidates TEACH SINTRA AI YOUR BUSINESS Each AI Employee already knows their role, so you only teach them your business. Add your services, clients, tone of voice, and the way you like things done to Brain AI, and every new task starts with context. You don’t have to re-explain your business or start from scratch every time. The more you teach Sintra AI, the more the work sounds like you. YOUR SECOND BRAIN, ON YOUR PHONE The app works with the same AI Employees and the same Brain AI as Sintra AI on your computer. Ask anything in one chat, and the right AI Employee picks it up. Start your day knowing what matters, approve a post, answer a customer, or get an idea out of your head before you lose it. Prefer to talk? Try voice conversations (beta), only in the app. YOU STAY IN CHARGE Review and edit drafts before they go out, or set up automations for the work you’re ready to hand off, like posting to social media or replying to Facebook comments. Run more than one business? Give each one its own workspace and its own Brain AI, so nothing gets mixed up. WHY OWNERS CHOOSE SINTRA AI • Used by 50,000+ business owners • 3.6 million+ posts published with Soshie • Backed by a $17M seed round led by Earlybird SECURITY AND PRIVACY Private, secure workspaces. No third-party data sharing. Regular security updates. SUBSCRIPTION INFORMATION Sintra AI requires a subscription. You’ll see the plans and prices in the app before you pay. Your subscription renews automatically unless auto-renew is turned off. Cancel anytime through your Account Settings. Terms of Service: https://sintra.ai/terms-and-conditions Privacy Policy: https://sintra.ai/privacy-policy Get Help: https://sintra.ai/help

Screenshots

OptiSigns Admin4 screens
Sintra4 screens

Verdict

The call

The clearest difference is in-app purchases: OptiSigns Admin at none against Sintra's 10. OptiSigns Admin also leads on ads (none vs shown) and review sentiment (79% vs 50%). Sintra's advantage is update cadence (weekly vs every 2 months) and chart position (#191 vs unranked). On price, rating, ratings volume 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. Sintra sells 9 in-app purchases, starting at $48.49 per month. OptiSigns Admin asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OptiSigns Admin holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 1.3K and 2.7K respectively. Written reviews point the same way: 79% of OptiSigns Admin's written reviews are positive against 50% of Sintra's.

UpkeepUpdate frequency

OptiSigns Admin ships an update every 2 months, Sintra weekly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard6 real differences · 5 level
OptiSigns Admin versus Sintra: the parameters behind the verdict, then further details
ParameterOptiSigns AdminSintra
PriceFreeFree
Rating4.8 (1.3K ratings) — better4.6 (2.7K ratings)
Positive reviews78.9% of reviews — better50.3% of reviews
Number of ratings1.3K2.7K — better
Update frequencyEvery 2 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
Best chart rank—#191 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size74 MB160 MB
Age rating4+4+
DeveloperOptiSigns IncPlayOS, Inc.

Customer experience

OptiSigns Admin

All ratings1,256 ratings
Positive94.7%
Neutral1.8%
Negative3.4%
Written reviews19 reviews
Positive78.9%
Neutral0.0%
Negative21.1%

Sintra

All ratings2,681 ratings
Positive90.4%
Neutral3.3%
Negative6.3%
Written reviews433 reviews
Positive50.3%
Neutral9.5%
Negative40.2%

User reviews

OptiSigns Admin

From 1.3K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Intuitive software setup
  • 💡 Ability to change content remotely
  • 🚀 Reliable performance
  • 👍 Affordable pricing

Room to improve

  • 🐛 Login issues with Microsoft
  • 🐛 Buggy payment processing and invoicing
  • 👎 Not easy to set up
  • 👎 Confusing password requirements for guest accounts

Sintra

From 2.7K App Store ratings

What we love

  • 🚀 Powerful tools and features
  • 👍 User-friendly interface
  • 💡 Innovative AI-powered assistants
  • 🤖 Helpful and personalized support
  • 🔥 Game-changing for business

Room to improve

  • 🐛 Frequent crashes and glitches
  • 🔌 Integration issues with third-party apps
  • 🤖 Inconsistent performance of AI assistants
  • 💰 Expensive subscription
  • 🤔 Misleading marketing claims

Bugs and requests

OptiSigns Admin

Reported bugs

2 issues
  • Crashes when trying to login with Microsoft
  • Invoicing issues leading to multiple incorrect charges

Requested features

2 requests
  • Ability to trigger emergency and flash messages
  • Setting expiration and live features for assets

Sintra

Reported bugs

5 issues
  • Login and authentication problems
  • Inability to upload images and files
  • Calendar integration failures
  • Inaccurate data calculations
  • Unreliable scheduling and automation

Requested features

5 requests
  • Improved social media integration
  • Voice control and dictation capabilities
  • Seamless syncing across devices
  • Enhanced customization options
  • Expanded API access for developers

In-app purchases

None

OptiSigns Admin

No in-app purchases

9 purchases

Sintra

Subscriptions9
  • Sintra X Monthly2 variants$48.491 Month
  • Sintra X 3 Monthly$71.003 Months
  • Sintra X Monthly 300$75.001 Month
Show 6 more
  • Sintra X Monthly 500$124.991 Month
  • Sintra X 3 Monthly 300$143.993 Months
  • Sintra X Monthly 700$174.991 Month
  • Sintra X Yearly$186.991 Year
  • Sintra X Yearly 7-day trial7 Days trial$186.991 Year
  • Sintra X Yearly 300$359.991 Year

Questions

Is OptiSigns Admin free?
OptiSigns Admin is free to download, with no in-app purchases.
Is Sintra free?
Sintra is free to download, with in-app purchases available.
Which has better reviews, OptiSigns Admin or Sintra?
OptiSigns Admin is rated higher. OptiSigns Admin averages 4.8 out of 5 from 1.3K ratings, while Sintra averages 4.6 from 2.7K ratings.
Do OptiSigns Admin or Sintra have ads?
Sintra shows ads; OptiSigns Admin does not.
Which is updated more often, OptiSigns Admin or Sintra?
OptiSigns Admin ships an update every 2 months, and Sintra weekly. Most recently, OptiSigns Admin was updated on November 7, 2026 and Sintra on November 8, 2026.

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