Comparison

Appen Mobile vs Polyguard Mobile

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

Head to head
About

Appen Mobile

Earn money by completing tasks that help train AI models. This includes activities like capturing images, recording audio, and labeling data. It's a flexible way to contribute to cutting-edge technology.

Highlights
  • Paid AI training tasks
  • Image and audio capture
  • Data labeling
  • Flexible work options
  • Remote job opportunities
Features
Read full description

Participate in paid, full-time or flex-time-jobs powering new and popular Artificial Intelligence models. Choose tasks like taking pictures of objects, taking videos or recording audio. FOR BEST EXPERIENCE: It’s recommended you use a computer when prompted for some of the registration and project selection steps before beginning work in the app. Appen collects and labels images, text, speech, audio, video, and other data used to build and continuously improve the world’s most innovative artificial intelligence systems. We have been recognized by FlexJobs as a Top 100 Company to Watch for Remote Jobs. We have a global crowd of over 1 million skilled contractors who speak over 180 languages and dialects, in over 70,000 locations and 130 countries. Visit https://appen.com/ to learn more about Appen.

About

Polyguard Mobile

This app provides real-time identity verification for video calls and meetings, ensuring participants are who they claim to be. It's designed for businesses to prevent fraud and enhance trust in remote communication, especially during hiring and sensitive discussions.

Highlights
  • Real-time identity verification
  • Prevent interview fraud
  • Verify participant identity
  • Secure sensitive information
  • Proof of attendance for audits
  • Biometric data stays on device
  • End-to-end encryption
Features
Read full description

Prove Yourself. Without Compromise. When you apply for a job, join a high-stakes call, or contact a help desk, the other side now has to wonder whether you're real. Synthetic faces, stolen profiles, and imposter applicants have made everyone suspicious of everyone. Polyguard fixes that for you. Instead of leaving you to be second-guessed or lumped in with fraudsters, it helps you prove you're a real, verified human before the conversation even starts. Verify Once, Trusted Everywhere Each Polyguard proof, from a simple device integrity check to a full government identity document scan, only needs to be done once. Your proofs stay bound to your phone's secure hardware, and are never uploaded. From then on, proving you're you takes just seconds, wherever you go. Where It Matters + When you apply for a job: Sail past fraud screening that snags everyone else. You prove you're a real, authorized applicant up front, so you never get mistaken for an imposter or a sanctioned account. + When you join a meeting or interview: Show your proven identity and authentic location before the conversation starts, so the people on the other side know it's really you and you can get straight to business. + When you call a help desk: Skip the security-question runaround. Give instant proof of who you are before a reset, escalation, or access request, and get what you need without the friction. How It Works + Quickly verify your device, just once. + When identity matters, respond to a secure Polyguard prompt by link, QR, or in-flow request. + Your identity is confirmed in seconds. + The other side gets instant, tamper-proof confirmation that you're a verified human… not copies of your personal data. You don’t need an account with Polyguard or anyone else to use this app, and there’s no complex setup. Privacy by Design Polyguard is built on zero-trust principles, for people who treat consent and control as non-negotiable. + Hardware-backed identity proofs + No tracking, no profiling, no persistent identifiers + Compliant with GDPR, CCPA, and other global privacy standards + If you choose to complete a full document verification, your biometric data stays on your phone, encrypted and where you can control it Recognized By + Fast-scaling startups and regulated enterprises + Recruiting agencies and staffing platforms + Wealth managers, law firms, and M&A teams + Defense, aerospace, and critical infrastructure Detection has peaked. As generative models improve, every tool that tries to spot fakes degrades, and real people get caught in the dragnet alongside the fakes. Prevention doesn't play that game. By proving your real identity and authentic location at the moments that matter, Polyguard takes you out of the suspect pool entirely.

Screenshots

Appen Mobile4 screens
Polyguard Mobile4 screens

Verdict

The call

The clearest difference is rating: Polyguard Mobile at 5.0 against Appen Mobile's 1.9. Appen Mobile's advantage is ratings volume (125 vs 4) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Polyguard Mobile holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: Appen Mobile has 125 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Appen Mobile ships an update fortnightly, Polyguard Mobile every 2 weeks. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
Appen Mobile versus Polyguard Mobile: the parameters behind the verdict, then further details
ParameterAppen MobilePolyguard Mobile
PriceFreeFree
Rating1.9 (125 ratings)5.0 (4 ratings) — better
Positive reviews5.7% of reviews—
Number of ratings125 — better4
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.3 — better17.0
Further details — not scored
Size63 MB85 MB
Age rating17+4+
DeveloperAppen Butler Hill Pty LtdPolyguard

Customer experience

Appen Mobile

All ratings125 ratings
Positive18.4%
Neutral9.6%
Negative72.0%
Written reviews122 reviews
Positive5.7%
Neutral5.7%
Negative88.5%

Polyguard Mobile

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Appen Mobile

Reported bugs

4 issues
  • Login issues
  • Inability to upload videos
  • Inconsistent performance across devices
  • Unreliable task availability

Requested features

4 requests
  • Improved customer support
  • More language options
  • Ability to track earnings and progress
  • Offline mode for tasks

Polyguard Mobile

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Appen Mobile

No in-app purchases

None

Polyguard Mobile

No in-app purchases

Questions

Is Appen Mobile free?
Appen Mobile is free to download, with no in-app purchases.
Is Polyguard Mobile free?
Polyguard Mobile is free to download, with no in-app purchases.
Which has better reviews, Appen Mobile or Polyguard Mobile?
Polyguard Mobile is rated higher. Appen Mobile averages 1.9 out of 5 from 125 ratings, while Polyguard Mobile averages 5.0 from 4 ratings.
Do Appen Mobile or Polyguard Mobile have ads?
Neither Appen Mobile nor Polyguard Mobile shows ads.
Which is updated more often, Appen Mobile or Polyguard Mobile?
Appen Mobile ships an update fortnightly, and Polyguard Mobile every 2 weeks. Most recently, Appen Mobile was updated on September 20, 2026 and Polyguard Mobile on September 19, 2026.

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