Comparison

GTS Interior Supply vs I4Less

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

Head to head
About

GTS Interior Supply

Features
Read full description

GTS Interior Supply serves both commercial and residential customers and offers an in-house inventory of construction supplies in 23 locations. All of our employees pride themselves on being hard working, safe, and professional. Whether you need drywall, insulation, acoustical tile or construction accessories, we've got your jobsite needs covered. The GTS Interior Supply app features include full access to your online account and account pricing, as well as real time inventory and full order tracking.

About

I4Less

This app provides high-quality reflective insulation products at competitive prices. It offers fast shipping and detailed information for both professional contractors and DIY enthusiasts.

Highlights
  • Best reflective insulation products
  • Competitive delivered pricing
  • Fast shipping
  • Detailed technical data
  • Installation instructions
  • Email communication
Features
Read full description

Insulation4Less.com Inc. We Do 3 Things: 1. Provide the best reflective insulation - Prodex Total is the standard bearer in the industry. 2. Provide the best delivered price for insulation that matches our specifications. 3. Ship within a day! If getting the best reflective insulation, at the best price, delivered the fastest is what you're looking for, you're at the right place. Who buys from us? Repeat business by contractors represents the majority or our sales. We also welcome do-it-yourselfers. Communication To be effective, we primarily communicate via email. After a baseline of information is provided, if necessary will can schedule a phone call. A perfect fit for some - Our customers prefer to avoid paying sales commissions. They're willing and capable of using the website to access technical data, pricing, ordering and install instructions. We supplement this information with prompt customized email responses that includes links to articles, install instructions, pricing and technical data.

Screenshots

GTS Interior Supply4 screens
I4Less4 screens

Verdict

The call

The clearest difference is update cadence: I4Less at every 5 months against GTS Interior Supply's every 18 months. I4Less also leads on iOS requirement (8.0 vs 15.6). 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

GTS Interior Supply ships an update every 18 months, I4Less every 5 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 7 level
GTS Interior Supply versus I4Less: the parameters behind the verdict, then further details
ParameterGTS Interior SupplyI4Less
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 18 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.68.0 — better
Further details — not scored
Size56 MB70 MB
Age rating4+4+
DeveloperKodaris, IncInsulation4less

In-app purchases

None

GTS Interior Supply

No in-app purchases

None

I4Less

No in-app purchases

Questions

Is GTS Interior Supply free?
GTS Interior Supply is free to download, with no in-app purchases.
Is I4Less free?
I4Less is free to download, with no in-app purchases.
Do GTS Interior Supply or I4Less have ads?
Neither GTS Interior Supply nor I4Less shows ads.
Which is updated more often, GTS Interior Supply or I4Less?
GTS Interior Supply ships an update every 18 months, and I4Less every 5 months. Most recently, GTS Interior Supply was updated on October 24, 2026 and I4Less on October 15, 2026.

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