Comparison

Sidekick Tools vs Resellify

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

Head to head
About

Sidekick Tools

Automate and enhance your online selling presence with powerful closet management tools. Increase visibility, manage shares, send offers, and track performance to grow your business. Put your sales on autopilot and reclaim your time.

Highlights
  • Self-Shares
  • Party Shares
  • Community Shares
  • Automated Follows
  • Advanced Offer Sending
  • Re-listing
  • Sales Statistics
Features
Read full description

From the makers of Poshmark Pro Tools, Posh Sidekick is the most intuitive closet management tool. FREE 7-Day, Unlimited Trial. No credit card needed. What does Sidekick do? We automate and increase your visibility by arming you with the tools you need like - Self-Shares Party Shares Community Shares Follows that Promote Closet Growth Advanced Offer Sending Re-listing Statistics Track – Daily and Weekly *There’s much more in store for Sidekick and we’re enhancing and adding features frequently Put your closet on autopilot and watch your sales skyrocket. We’ve been doing this since 2015 — We know Poshmark. We know sellers. We built Sidekick with you in mind – our developers and seasoned sellers have worked together to bring you innovative ways to grow your business. Our collaboration with the community has given birth to a new breed of automation. You’ll never have to worry about your closet again. To get started, simply download our app, then in 3 easy steps: 1. Create a new Sidekick account 2. Link your closet 3. Turn on your service. Posh Sidekick navigates the Poshmark algorithm like no other! We’ve worked tirelessly for years, looking for the quickest and easiest ways for your listings to be seen by the most buyers at the right time. If you’ve tried other expensive apps and chrome extensions and you think that there must be a better, more effective way to give your closet the exposure it needs, then you are absolutely correct. You won’t have to constantly babysit Sidekick. You’ll be paying less with Sidekick. You’ll be able to customize your experience with Sidekick – we’ve given you the best tools and we’re constantly evolving. Get your time back. Source more. List more. Let Posh Sidekick do the heavy lifting. Download Posh Sidekick now!

About

Resellify

This app helps users find profitable sneakers and apparel by aggregating data from major resale platforms. It provides detailed pricing metrics, sales data, and in-store stock information to assist in determining product liquidity and profitability.

Highlights
  • Product search across multiple resale platforms
  • Detailed pricing and sales metrics
  • In-store stock status checks
  • Profitability calculator
  • Cross-platform listing comparisons
  • Customizable settings for pricing accuracy
  • Multi-currency support
Features
Read full description

Finding profitable sneakers has never been this easy! Here are some of the many features implemented in Resellify: Product Search - Easily search any sneakers, apparel, collectibles from resale platforms such as StockX, Goat, Ebay, Stadium Goods, Flight Club etc. Fresh data is fetched on each new search allowing for accurate metrics. Product Metrics - Resellify provides detailed pricing metrics for all product sizes from various resell platforms such as StockX, Goat, Ebay, Stadium Goods, Flight Club etc. Our in-depth sales data can greatly help with determining size specific product liquidity. Product Metadata - Quickly glance at product growth allowing you to determine whether a product is profitable. Liquidity provides insight on how easy selling a product can be based on various resale platforms' sales data. In-Store Stock - Easily check in-store stock status for products at Champs, Finishline, Footlocker, Nike etc. Stock data is fetched at the time of a search allowing for high accuracy stock results. Product Listings - Easily view product listings in a popup at the touch of a button to gain access to more information that may not be displayed in application metrics. We provide quick access buttons to StockX, Goat, Ebay, Stadium Goods, and Flight Club product listings. Profit Calculator - Determine profitability for a product at different price points with our profit calculator. Compare profitability across multiple resale platforms to determine the best sales strategy. Metrics Table - View all bids and asks across supported resale platforms in an organized table allowing for fast comparisons to determine best purchase and sales strategy. Shopping Basket - Have an easier time keeping track of profitable deals during shopping runs with accurate financial metrics. Modify your basket at any time to see updated financial metrics without any loading times. Customizable Settings - Customize your experience by tuning many of our available settings in the Resellify application to get even more accurate pricing results in order to determine profitability. Everything from fees to discoverability parameters can be customized. 10+ Currencies - Switch to any supported international currency in order to view pricing data in different currencies. Currency data is periodically updated to allow for most accurate conversions. For more information and a detailed breakdown of all features, visit our website at https://resellify.app

Screenshots

Sidekick Tools4 screens
Resellify4 screens

Verdict

The call

The clearest difference is in-app purchases: Resellify at none against Sidekick Tools's 5. Resellify also leads on review sentiment (80% vs 49%) and iOS requirement (13.0 vs 15.6). Sidekick Tools's advantage is ratings volume (2.3K vs 17). On price, rating, update cadence and ads 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. Sidekick Tools sells 5 in-app purchases, starting at $34.99 per month. Resellify asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sidekick Tools holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Sidekick Tools has 2.3K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 49% of Sidekick Tools's written reviews are positive against 80% of Resellify's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sidekick Tools ships an update every 10 days, Resellify every 2 weeks. The most recent releases landed on September 23, 2026 and June 4, 2026 respectively.

Scorecard5 real differences · 5 level
Sidekick Tools versus Resellify: the parameters behind the verdict, then further details
ParameterSidekick ToolsResellify
PriceFreeFree
Rating4.7 (2.3K ratings) — better4.5 (17 ratings)
Positive reviews48.6% of reviews80.0% of reviews — better
Number of ratings2.3K — better17
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size81 MB21 MB
Age rating17+4+
DeveloperMichael ChierchioAXSYS, LLC

Customer experience

Sidekick Tools

All ratings2,268 ratings
Positive90.7%
Neutral2.8%
Negative6.4%
Written reviews181 reviews
Positive48.6%
Neutral9.4%
Negative42.0%

Resellify

All ratings17 ratings
Positive88.2%
Neutral0.0%
Negative11.8%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

Sidekick Tools

Reported bugs

4 issues
  • App crashes during use
  • Listings disappearing from closet
  • Inability to unsubscribe or cancel
  • Inconsistent sharing and relisting

Requested features

4 requests
  • More customization options
  • Improved reporting and analytics
  • Expanded platform integrations
  • Better communication from developers

Resellify

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Sidekick Tools

Subscriptions5
  • Monthly Subscription$34.991 Month
  • Monthly Subscription$59.991 Month
  • Monthly Subscription$79.991 Month
Show 2 more
  • Monthly Subscription$94.991 Month
  • Monthly Subscription$109.991 Month
None

Resellify

No in-app purchases

Questions

Is Sidekick Tools free?
Sidekick Tools is free to download, with in-app purchases available.
Is Resellify free?
Resellify is free to download, with no in-app purchases.
Which has better reviews, Sidekick Tools or Resellify?
Sidekick Tools is rated higher. Sidekick Tools averages 4.7 out of 5 from 2.3K ratings, while Resellify averages 4.5 from 17 ratings.
Do Sidekick Tools or Resellify have ads?
Neither Sidekick Tools nor Resellify shows ads.
Which is updated more often, Sidekick Tools or Resellify?
Sidekick Tools ships an update every 10 days, and Resellify every 2 weeks. Most recently, Sidekick Tools was updated on September 23, 2026 and Resellify on June 4, 2026.

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