Comparison

DuoTask Spark vs RewardLens

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

Head to head
About

DuoTask Spark

Features
Read full description

Tasks first. Pleasure next. DuoTask Spark turns everyday tasks into rewards you choose together. Use it with a partner, friends or housemates. A little kink is optional; making the everyday more fun is the point. REWARDS WORTH DOING IT FOR Attach a reward directly to a task: a surprise photo, breakfast in bed, a massage or whatever you agree on. Choose a visible, blurred or hidden photo preview and whether to reveal it on completion. Points are optional. YOUR PEOPLE, ONE SHARED LIST Create tasks, assign them to someone or leave them open, and set a recurring schedule. The calendar and activity feed keep everyone in the loop. Invite your people with a link or an 8-character code. PICK YOUR PLEASURE Prefer saving up for something bigger? Add points and create your own reward collection. Completion celebrations, streaks and a leaderboard bring a little friendly competition. PRIVATE BY DESIGN New reward photos encrypt on your device using a private group key that members share separately. Legacy photos are not automatically encrypted. Preview settings control how photos appear; share only what everyone involved agrees to. MADE FOR REAL LIFE Native performance, dark mode, reminders, and sign-in with Apple, Google or email. Account deletion is available in Settings. Optional usage sharing is off until you choose to enable it.

About

RewardLens

Earn rewards by creating short videos about products you purchase and use. These videos provide valuable market research for manufacturers. Redeem your earned points for gift cards and invite friends to increase your earnings.

Highlights
  • Create product videos for rewards
  • Participate in market research projects
  • Earn points and redeem gift cards
  • Invite friends for increased earnings
  • Share shopping and usage experiences
Features
Read full description

RewardLens is an application that rewards shoppers for making short videos about the products they buy and use. These videos are used for market research to help product manufacturers understand real shopping and usage experiences and improve their products. Videos are never used to market products and are never shared with other websites. It’s simpler and more rewarding than traditional online surveys. Join available projects, record as directed, earn points, and redeem rewards — including gift cards. Invite friends and grow your earnings as you go. Join RewardLens and start earning your reward!

Screenshots

DuoTask Spark4 screens
RewardLens3 screens

Verdict

The call

The clearest difference is update cadence: DuoTask Spark at weekly against RewardLens's fortnightly. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DuoTask Spark ships an update weekly, RewardLens fortnightly. Both last shipped on October 24, 2026.

Scorecard1 real difference · 8 level
DuoTask Spark versus RewardLens: the parameters behind the verdict, then further details
ParameterDuoTask SparkRewardLens
PriceFreeFree
Rating—2.3 (3 ratings) — better
Number of ratings—3 — better
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.5
Further details — not scored
Size21 MB21 MB
Age rating12+17+
DeveloperAislan LanderMotions Research LLC

In-app purchases

None

DuoTask Spark

No in-app purchases

None

RewardLens

No in-app purchases

Questions

Is DuoTask Spark free?
DuoTask Spark is free to download, with no in-app purchases.
Is RewardLens free?
RewardLens is free to download, with no in-app purchases.
Do DuoTask Spark or RewardLens have ads?
Neither DuoTask Spark nor RewardLens shows ads.
Which is updated more often, DuoTask Spark or RewardLens?
DuoTask Spark ships an update weekly, and RewardLens fortnightly. Most recently, DuoTask Spark was updated on October 24, 2026 and RewardLens on October 24, 2026.

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