BuyPerUnit Alternatives & Competitors
BuyPerUnit is a price-per-unit comparison tool for storage and printer ink across Amazon, Best Buy, and Newegg. But it is not the right tool for every job. Below is an honest comparison of BuyPerUnit against five alternatives — including when you should use them instead of us.
Feature Comparison
| Feature | BuyPerUnit | DiskPrices | PCPartPicker | PricePerGig | CamelCamelCamel |
|---|---|---|---|---|---|
| Price per unit focus | ✓ $/GB + $/page | ✓ $/GB only | ✗ Total price | ✓ $/GB only | ✗ Price history |
| Categories | Storage + Ink | Storage only | All PC parts | Storage only | Amazon only |
| Retailers | Amazon, Best Buy, Newegg | Amazon only | Many | Multiple | Amazon only |
| Update frequency | Daily | Varies | Real-time | Varies | Real-time |
| Free | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Price alerts | ✓ Yes | ✗ No | ✓ Yes | ✗ No | ✓ Yes |
Table reflects publicly available features as of March 2026. All tools listed are free to use.
BuyPerUnit vs DiskPrices
When to use DiskPrices.com instead
If you only care about Amazon storage prices, DiskPrices is simpler. It has a clean, minimal interface focused on one retailer and one product type. No extra categories or retailers to filter through.
DiskPrices.com strengths
- Simpler interface — one retailer, one focus
- Established community and long track record
- Quick at-a-glance $/GB for Amazon storage
Where BuyPerUnit differs
- Multi-retailer: Amazon, Best Buy, and Newegg compared side-by-side
- More categories: storage plus printer ink ($/page)
- Price alerts notify you when a product drops
BuyPerUnit vs PCPartPicker
When to use PCPartPicker instead
If you are building a full PC and need CPU, GPU, motherboard, case, and PSU comparisons with compatibility checking, PCPartPicker is the better tool. It was built for that workflow and does it well.
PCPartPicker strengths
- Full PC build compatibility checker
- Covers every PC component category
- Real-time pricing from many retailers
- Large community with build guides
Where BuyPerUnit differs
- PCPartPicker sorts by total price, not price per unit
- BuyPerUnit makes $/GB the primary comparison metric
- Easier to compare raw storage value across drives
BuyPerUnit vs PricePerGig
When to use PricePerGig.com instead
If you want a JSON API for programmatic access to price-per-GB data, PricePerGig offers that. Developers building tools on top of storage pricing data may prefer their API-first approach.
PricePerGig.com strengths
- JSON API for programmatic access
- Developer-friendly data format
- Focused on raw data availability
Where BuyPerUnit differs
- More polished consumer-facing interface
- Multi-retailer comparison (not just one source)
- Price history tracking and price drop alerts
- Printer ink and additional categories beyond storage
BuyPerUnit vs CamelCamelCamel
When to use CamelCamelCamel instead
If you want historical price charts for non-storage Amazon products — electronics, kitchen appliances, books, anything — CamelCamelCamel is the tool. It tracks millions of Amazon products over years of price history.
CamelCamelCamel strengths
- Millions of Amazon products tracked
- Years of historical price data
- Browser extension for in-page price history
- Covers every Amazon category, not just storage
Where BuyPerUnit differs
- CamelCamelCamel shows total price history, not price per unit
- BuyPerUnit compares across Amazon, Best Buy, and Newegg
- Purpose-built for storage and ink value comparison
BuyPerUnit vs Honey
When to use Honey (PayPal) instead
If you want automatic coupon codes applied at checkout across all kinds of online shopping — clothing, electronics, food delivery — Honey covers far more stores and product types than BuyPerUnit.
Honey (PayPal) strengths
- Automatic coupon code application at checkout
- Works across thousands of online stores
- Browser extension integrates into your shopping flow
- Covers every product category imaginable
Where BuyPerUnit differs
- Honey finds coupons but does not calculate price per unit
- BuyPerUnit shows which product gives you the most per dollar
- Dedicated comparison tables sorted by $/GB or $/page
When NOT to Use BuyPerUnit
No tool does everything well. Here are specific cases where BuyPerUnit is not the right choice and what to use instead.
You need read/write speed benchmarks or performance data
Use UserBenchmark or PassMark for performance comparisons. BuyPerUnit tracks price, not speed.
You are shopping for enterprise or datacenter storage
See ServerPartDeals for server-grade drives, RAID controllers, and datacenter pricing. BuyPerUnit focuses on consumer retail.
You want used or refurbished drive prices
Check eBay directly. BuyPerUnit only tracks new, in-stock items from Amazon, Best Buy, and Newegg.
You need to compare CPUs, GPUs, or non-storage components
PCPartPicker covers every PC component category with compatibility checking. BuyPerUnit only covers storage and printer ink.
You want price history for non-storage Amazon products
CamelCamelCamel tracks millions of Amazon products across every category. BuyPerUnit only tracks storage and ink.
Frequently Asked Questions
What is the best alternative to BuyPerUnit?
It depends on what you need. For storage-only Amazon comparisons, DiskPrices is the simplest option. For full PC builds including CPUs, GPUs, and cases, PCPartPicker is better. For historical price tracking across all Amazon products, CamelCamelCamel is the standard. BuyPerUnit is best when you specifically want price-per-unit comparisons across multiple retailers.
Is BuyPerUnit free to use?
Yes. BuyPerUnit is completely free. There are no subscriptions, paywalls, or premium tiers. The site earns revenue through affiliate commissions when you click through and purchase — this does not affect how products are ranked.
Does BuyPerUnit track more than just storage devices?
Yes. BuyPerUnit tracks storage devices (SSDs, hard drives, RAM, SD cards, USB drives) and printer ink cartridges. Printer ink is compared by price per page ($/page) rather than price per gigabyte. More categories are planned.
Why would I use BuyPerUnit instead of just checking Amazon?
Amazon shows total price, not price per unit. A $50 1TB drive and a $80 2TB drive look like the $50 one is cheaper — but the 2TB drive is actually 20% cheaper per gigabyte. BuyPerUnit calculates and sorts by price per unit across Amazon, Best Buy, and Newegg so you can compare value directly.
Does BuyPerUnit track performance benchmarks or reviews?
No. BuyPerUnit focuses exclusively on price-per-unit value. It does not measure read/write speeds, IOPS, endurance ratings, or other performance metrics. For benchmarks, use UserBenchmark or PassMark. For reviews, check StorageReview or AnandTech.